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Table of Contents
AT&T Enhanced Push-to-Talk .................................................................................................... 3
Service Description................................................................................................................. 3
SD-1. General ..................................................................................................................... 3
SD-1.1. AT&T EPTT Standard Features .......................................................................... 4
SD-1.1.1. Push to Talk Calling ..................................................................................... 4
SD-1.1.2. Fallback Voice Message .............................................................................. 5
SD-1.1.3. Integrated Secure Messaging ...................................................................... 5
SD-1.1.4. Location Tracking ......................................................................................... 6
SD-1.2. AT&T EPTT Advanced Features ........................................................................ 6
SD-1.2.1. EPTT Emergency Calling ............................................................................. 6
SD-1.2.2. User Awareness Features ............................................................................ 6
SD-1.2.3. Additional Features ...................................................................................... 7
SD-1.3. Administration ................................................................................................. 7
SD-1.3.1. Corporate Administration Tool (CAT) ........................................................... 7
SD-1.4. Integrated Dispatch Console (IDC) ................................................................. 7
SD-1.5. LMR Interoperability ........................................................................................ 8
SD-1.5.1. Enhanced PTT Interoperability MPLS VPN Backhaul (Optional) .................. 8
SD-1.5.1.1. 10 MB MPLS Ports and 10 MB Ethernet Access ................................... 9
SD-1.6. Equipment Management ............................................................................. 9
SD-1.6.1. Initial Installation ................................................................................... 9
SD-1.6.2. Life Cycle Maintenance ......................................................................... 9
SD-1.6.3. Customer Responsibilities ....................................................................10
SD-1.7. SNMP Read-Only Access .......................................................................10
SD-1.8. Basic Inside Wire ....................................................................................10
SD-1.9. Withdrawal of Service or a Service Component ......................................11
SD-1.10. Service Restoration ...............................................................................11
SD-1.10.1. Problem Severity Code Definitions .....................................................12
SD-2. AT&T Dynamic Traffic Management ........................................................................12
SD-2.1. AT&T Dynamic Traffic Management – Enterprise ..............................................12
SD-2.2. AT&T Dynamic Traffic Management – Public Safety .........................................14
SD-3. Availability - Summary..............................................................................................15
SD-4. Important Information ...............................................................................................16
SD-5. Privacy .....................................................................................................................17
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SD-6. End User License Agreement (EULA) ......................................................................17
Pricing (P) .............................................................................................................................18
P-1. Rate Table AT&T EPTT Standard-FEA-MC: AT&T Enhanced Push-to-Talk — Monthly
Charge ...............................................................................................................................18
P-1.1 Rate Table AT&T EPTT Advanced-FEA-MC: AT&T Enhanced Push-to-Talk — Monthly
Charge ...............................................................................................................................20
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AT&T Enhanced Push-to-Talk
Section Effective Date: 19-Mar-2018
AT&T Enhanced Push-To-Talk (EPTT) is a next generation Push-to-Talk (PTT) service that
provides virtually instant voice communications, situational awareness capabilities, highly secure
messaging, location features, and features based on industry standards for Mission Critical Push
to Talk (MCPTT) such as emergency calling over 3G, 4G, 4G LTE and Wi-Fi. EPTT provides
walkie-talkie-like communications and advanced features that operate on a broad portfolio of
compatible smartphone and rugged phone devices and integrate with various advanced mobility
applications for use on the AT&T wireless data network and compatible Internet-connected
networks.
This Service Guide consists of the following sections:
• Service Description (SD)
• Pricing (P)
In addition, General Provisions apply.
Service Description
SD-1. General
Section Effective Date: 19-Mar-2018
AT&T EPTT is an IP-based end-to-end communications and applications platform that offers fast
performance, sub-second call setup, advanced features, and a broad portfolio of smartphone,
tablet, and rugged phone on compatible wireless data and Wi-Fi Networks.
The AT&T EPTT application is a FIPS 140-2 compliant software application that operates on
compatible devices and it is offered to customers in two tiers: AT&T EPTT Standard and AT&T
EPTT Advanced. Each tier’s capabilities and the mobile application can be configured using either
the Basic or LMR user-interface versions on a user-by-user basis.
The Basic version is an intuitive user interface that features one to one or group calling, alerts,
multimedia messages, location tracking, talkgroup scanning, presence indicators and history
information. The LMR version mirrors the operation of a traditional two-way radio with pre-defined
talk groups and an all-in-one interface and supports Customers migrating from two-way radio.
Via the Corporate Administration Tool (CAT) the Corporate Administrator assigns the user
interface mode (version) to each user. Users will see a notification if their version is changed.
AT&T Enhanced Push-to-Talk is available in two feature packages (Standard and Advanced) that
allow Customers to:
• Communicate almost instantly with groups of up to 250 users with the push of a button.
• See which talkgroup members are available using real-time presence status indicators.
• Allow certain talkgroup members to make high-priority one-way calls - typically used for
making important announcements to large groups.
• Use One Touch Calling to reach a contact or talkgroup with a push of a button - even when
their devices are locked. Available on selected devices.
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• Give higher priority to selected talkgroups, whose calls take precedence over lower priority
talkgroup calls.
• Assign up to 96 talkgroup channels using the EPTT LMR version.
• Manage resources and workers in the field. Users can share their location data with groups
and contacts, and supervisors can track the locations of group members and establish geo-
fencing to manage users’ movements in and out of a work site.
• Send a voice message to another EPTT contact asking for a callback.
• Transmit highly secure texts, images, video, files, location data and voice recordings to both
groups and contacts.
• Communicate with Land Mobile Radio (LMR) and other external PTT networks through the
optional Interoperability feature.
• Consolidate critical mobile workflow elements on a single communications platform, including
dispatch, fleet management, GPS tracking, ticketing, field force automation, work order
management, inventory and asset management, mobile forms, and mobile resource
management.
• Consolidate multiple functions (PTT, e-mail, cellular calls, GPS mapping and directions,
mobile forms/work orders, Point of Sale, in-house applications and more) on a single smart
device (some functions must be purchased separately).
• Use safety features for CRU devices, such as emergency calling, user check and monitor,
and user enable and disable, which are managed by an administrator using the Corporate
Administrative Tool (CAT).
AT&T Enhanced Push to Talk is available in two feature packages called AT&T EPTT Standard
and AT&T EPTT Advanced, which offer the following features.
SD-1.1. AT&T EPTT Standard Features
The features of AT&T EPTT Standard are:
SD-1.1.1. Push to Talk Calling
AT&T EPTT Standard delivers almost instant voice communication with groups up to 250 people
or an individual with the push of a button and supports:
• Presence services – provide real-time presence status indicators (available, unavailable,
and do not disturb).
• Alerts – provide the convenience of a quick alert for requesting a call back or displaying a
missed call.
• Background Call Mode – allows the user to hear incoming EPTT calls while the EPTT
application remains in the background.
• Broadcast Calling – initiates a preemptive one-way call to a large group of users at the
same time.
• One Touch Calling – allows an EPTT user to call a particular contact or talkgroup or most
recent history entry when the PTT button is pressed or allows the PTT button to be
assigned to open the application to the preferred landing page (History, Contacts, Groups,
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Favorite Contacts, or Favorite Groups). One Touch Calling is available on selected
devices.
• History – provides EPTT call and message history.
• EPTT Voice Message Fallback – allows an EPTT call to be converted into a voice
message if the called party is unavailable.
• Silent Mode Behavior (Privacy Mode) – provides alerting behaviors while the device is in
silent mode, which can be controlled through the EPTT Privacy Mode setting.
• Supervisory Override (Talker Priority) – allows selected talkgroup members to place a PTT
call and speak at any time during a call, even if the target callers are on an active PTT
call.
• Talkgroup Scanning with Priority – allows an EPTT user to select up to 16 talkgroups for
monitoring, with three that can be set as prioritized groups.
• Wi-Fi Support – allows the EPTT application to have access through Wi-Fi access points
connected to the Internet.
SD-1.1.2. Fallback Voice Message
Section Effective Date: 01-Feb-2018
EPTT can send a real-time recorded EPTT voice message to a contact or group when the
recipient(s) are not able to receive an EPTT call because of network coverage issues, availability
status or being busy on another call. If all the members of a group are unavailable, the EPTT
application can send a recorded voice message to all group members. Voice message fallback
does not apply when at least one of the members receives the call. If an EPTT message fails, it
falls backs to an EPTT Voice Message that is delivered to end users when they become available
SD-1.1.3. Integrated Secure Messaging
Section Effective Date: 01-Feb-2018
EPTT enables Customers to send highly secure messages to other EPTT subscribers, including
text, multimedia and location information to a group or to individuals in the EPTT system. Text
messages may consist of text up to 2000 bytes or a UTF-8 encoded text message of up to 500
characters. Text messages can be free-form or selected from a list of pre-configured messages.
The Corporate Administration Tool (CAT) can define up to 10 configurable messages. Multimedia
messaging content includes pictures, video, and recorded voice as an attachment, using one of
the supported content formats. The EPTT application automatically compresses the image,
video, and voice messages attachment. Supported formats include: Image files, JPEG & PNG.
GIF files, GIF 87a, GIF 89a and animated GIF 89a.Video files, H.263, H.264, MPEG-4. Audio
files, AAC, MP3, and AMR-NB. Voice messages can be pre-recorded (audio clips), or the EPTT
client application can record and send a voice message or voice note. In addition, EPTT also can
share location information with other EPTT groups or individual users. A user can send location
information as an attachment to other users. Location information is provided by the device’s OS
and the user can enter an address, search for a specific place, or drop a pin on a location to
share. The received location is displayed in the EPTT client application’s map interface.
Messages can be sent to unavailable users such as offline users or temporarily unreachable
users. The time-to-live (TTL) period during which notifications may be sent is configurable for up
to 7 days. Messages are discarded after the TTL window expires and will not be delivered to
users even if they become available later. Attachment downloads are allowed for a configurable
period of up to 30 days. .
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SD-1.1.4. Location Tracking
Section Effective Date: 01-Feb-2018
Location tracking allows an EPTT supervisor and the dispatcher of any talkgroup to check the
current location of all talkgroup members on a map, to create a boundary (Geofence) for a
talkgroup, and to receive notifications when members enter or leave the boundary. Only one
supervisor in a talkgroup is allowed to have location permissions.
Geolocation capabilities enable supervisors and dispatchers to check the geographic location of
all talkgroup members on maps. Supervisors can be assigned to a pre-arranged talkgroup and
can be enabled to view location information using the CAT. Once a supervisor is assigned to a
pre-arranged talkgroup and enabled for location information, the supervisor identifies the
talkgroup with a distinct icon. Upon selecting the location-enabled talkgroup, all the talkgroup
members’ current locations are updated on the supervisor’s map. The supervisor can also refresh
maps to request the latest location of talkgroup members. All the talkgroup members are
displayed on the map with the members’ presence statuses.
Supervisors and dispatchers can initiate an EPTT call from within the map window by selecting
the talkgroup member location marker. They are also allowed to define a virtual boundary (a
Geofence) to monitor the location of all talkgroup members. Geofences for a talkgroup can be
created by a single EPTT supervisor and up to 25 dispatchers. A Geofence is circular in shape,
and it is set using a distance from the fence center. Geofences can be static or follow me. A
static fence is one with a fixed location on the map as the fence center and is typically used by a
dispatcher. A follow me fence uses the supervisors’ personal locations as the center, and the
fence follows them as they move. Once the fence is defined and enabled, supervisors and
dispatchers will see the fence overlaid on the map with all the talkgroup members’ locations.
When any talkgroup member enters or leaves the fence, a fence cross notification is sent to that
talkgroup member as well as the supervisor and dispatcher.
SD-1.2. AT&T EPTT Advanced Features
In addition to all the features of AT&T EPTT Standard, AT&T EPTT Advanced includes:
SD-1.2.1. EPTT Emergency Calling
An EPTT user can declare an emergency state using the EPTT application on-screen or the
dedicated emergency hard-key on certified devices. When the feature is enabled by an
administrator via the CAT, the EPTT platform prioritizes these EPTT calls over all other EPTT
calls. The emergency state can only be cancelled by the originator, a supervisor or authorized
dispatcher.
SD-1.2.2. User Awareness Features
The following features are available for use with CRUs only. These features are managed by an
administrator who is authorized by the Customer through the use of the Corporate Administrative
Tool (CAT).
• User Check – enables an authorized user to check an EPTT user’s battery level, signal
strength (Wi-Fi and cellular) and current location if allowed by the device’s operating system.
• User Disable - enables an authorized user to remotely disable EPTT for a specific device.
This disables the device from accessing EPTT and secured messaging.
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• User Enable - enables an authorized user to remotely enable a user’s previously disabled
device, granting back access to EPTT and secure messaging.
SD-1.2.3. Additional Features
Charges for AT&T EPTT Advanced include AT&T Dynamic Traffic Management and the
monthly reoccurring charges for Land Mobile Radio Interoperability described below. The
non-reoccurring charges for LMR Interoperability are billed separately.
SD-1.3. Administration
The following sections describe the administrative functionality available for the EPTT system.
SD-1.3.1. Corporate Administration Tool (CAT)
Section Effective Date: 01-Feb-2018
The AT&T EPTT CAT can be used to manage a Customer’s contacts talkgroups and to designate
roles to specific talkgroup members that enable them to use EPTT situational and user awareness
capabilities. When an Customer authorized administrator makes changes to users’ profiles, these
are automatically pushed to the affected devices.
The features of the CAT include:
• Subscriber Profile Management - allows Customer authorized administrators to manage
subscribers’ profiles, such as name and subscription type.
• Contacts Management- allows an administrator to manage subscribers’ contacts.
• Contacts Management - allows an administrator to manage user sets.
• Talkgroup Management allows an administrator to manage talkgroups, including the ability
to interrupt talkgroup conversations. There are three types of groups that can be managed:
standard, dispatch, and broadcast groups.
• External Contacts Management - allows an administrator to add subscribers who are outside
the Customer’s organization.
• Interoperability Connections Management - supports communications between EPTT and
LMR systems.
SD-1.4. Integrated Dispatch Console (IDC)
Section Effective Date: 01-Feb-2018
The optional Integrated Dispatch Console feature is a Windows® based application that enables
administrators and supervisors to manage daily dispatch operations. The CAT administrator is
responsible for on-boarding the authorized Dispatcher and creating the necessary Dispatch
talkgroups.
The features of IDC enable a Dispatcher to:
• Establish a one-to-one call or send and receive an Instant Personal Alert (IPA) to or from
a user. Dispatchers can send and receive alerts to and from talkgroup members as a
request to call back.
• Start or end a PTT call, record a conversation, and see the speaker’s identity.
• Locate talkgroup members on the map, either individually or as a talkgroup.
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• Text and share multimedia content (i.e., audios, files, images and videos) with talkgroup
members.
• Allow a designated broadcaster to make high-priority one-way calls, typically used for
making important announcements.
• See a map showing the locations of talkgroup members in the field and make PTT calls,
send messages or send alerts to those talkgroup members directly from the map.
• Assign a virtual boundary (Geofence) to a talkgroup on the map. When a Geofence is
applied to a talkgroup, a notification is sent to the Dispatcher and other fleet members
whenever a talkgroup member crosses the fence’s boundary.
SD-1.5. LMR Interoperability
Section Effective Date: 01-Feb-2018
EPTT interoperates with two-way Land Mobile Radio (LMR) systems, allowing group
communications between the LMR and EPTT systems. The interoperability solution creates a
“talk-path” that connects the two systems and manages the calls between the networks. IP
Interoperability with traditional LMR systems can be delivered through various combinations of
customer premise equipment and AT&T networking support.
These alternatives support the interface and translation modules that convert LMR voice and
signaling into EPTT voice and signaling. AT&T has certified the standard radio interface defined
by P25 systems standards Console Subsystem Interface or CSSI, ISSI and the “non-standard”
Radio over IP interface (RoIP). Customers are responsible for purchase of additional third-party
equipment to complete the solution, which may include Console and console related equipment
and software licenses from console manufactures that support the CSSI interface to the AT&T
EPTT system; Inter-Subsystem Interface and gateway hardware and software licenses from
equipment manufacturers; Radio over IP gateways equipment and software licenses; Secure IP
connectivity between the Customer’s location(s) and AT&T data centers; and IP routing
equipment as needed.
SD-1.5.1. Enhanced PTT Interoperability MPLS VPN Backhaul (Optional)
Section Effective Date: 19-Mar-2018
This optional managed service provides a private connection for voice traffic between a Land
Mobile Radio system and the EPTT system. Customers must obtain access between each
Customer Site and an AT&T point-of-presence (POP) using clear channel digital dedicated
access facilities Customer obtains from AT&T or another provider. The Service enforces traffic
separation among customers in accordance with the RFC2547 standard. A unique virtual routing
and forwarding table is assigned to each Customer VPN. Traffic separation is provided without
the need for tunneling or encryption through a combination of Border Gateway Protocol routing
and MPLS label forwarding. VPN participation depends upon logical or physical ports entering
the VPN, where (i) a unique route distinguisher (RD) is assigned to each Customer route that
makes it unique within the MPLS backbone and (ii) a unique route target (RT) is assigned so that
each route is placed into the correct Customer virtual routing and forwarding table. A packet
received by the AT&T Network is associated with a Customer’s VPN, and a forwarding table
associated with the particular VPN is used to determine a set of possible egress interfaces within
the Customer's VPN. The service components include: 10 MB MPLS Ports and 10 MB Ethernet
Access and Equipment Management.
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SD-1.5.1.1. 10 MB MPLS Ports and 10 MB Ethernet Access
Section Effective Date: 19-Mar-2018
The MPLS Ports and Ethernet access provide the connection between a Customer’s IP network
and the AT&T Network. Each MPLS Port at a Customer Site, wherever located, requires a new
access line or access channel, and any replacement MPLS Port will require disconnection of the
existing MPLS Port and access line or access channel and installation of a new access line or
access channel. In both cases, disconnect and installation/activation charges applicable to such
access arrangements will apply.
SD-1.6. Equipment Management
Section Effective Date: 19-Mar-2018
AT&T will manage the AT&T-owned routers, channel service units (CSUs) and other equipment
(collectively “Equipment”) installed on Customer’s premises. AT&T will configure, monitor,
manage and maintain the Equipment located at the Customer Site. The management
demarcation point is the LAN interface card on the router at the Customer’s Site. Logical
configurations or other router management commands employed by AT&T with managed
Equipment are confidential AT&T Information and the sole and exclusive property of AT&T. Upon
termination of service or disconnection or termination of a site, Customer shall have no right to
use, or ownership interest in, the logical configurations or other router management commands
present or loaded on the AT&T Equipment. Upon termination of Service or disconnection or
termination of a Site, (i) Customer shall return all AT&T-owned Equipment in the same condition
as it was provided, reasonable wear and tear excepted; and (ii) any managed Customer-owned
Equipment shall be made available to AT&T upon AT&T’s reasonable request to allow removal
of all AT&T confidential Information, including logical configurations and router management
commands.
SD-1.6.1. Initial Installation
Section Effective Date: 19-Mar-2018
AT&T will provide the initial installation of managed Equipment at Customer’s sites. AT&T will
coordinate procurement of AT&T-owned hardware; provide staging, delivery, installation,
configuration, and testing of such hardware and software (Including Customer-owned managed
router equipment) upon validation by AT&T of compliance with its requirements; and test the end-
to-end connection. In addition, AT&T will send a representative onsite to test and turn up the
managed router.
SD-1.6.2. Life Cycle Maintenance
Section Effective Date: 19-Mar-2018
AT&T will provide life-cycle maintenance and diagnostic monitoring of managed AT&T
Equipment. AT&T will provide proactive 7-days-per-week, 24-hours-per-day (7 x 24) diagnostic
monitoring of service components; help desk support; coordination, as appropriate, with the local
carrier or the hardware or software vendor in the event of a disruption or a degradation of service
performance, or in connection with AT&T’s ongoing capacity management; ongoing proactive
software maintenance updates to the AT&T-owned Equipment in accordance with AT&T’s
maintenance schedule; and problem management, including logging, tracking and escalating
reported problems based on severity levels, as well as dispatch of and problem diagnosis by local
carrier or hardware maintenance personnel.
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SD-1.6.3. Customer Responsibilities
Section Effective Date: 19-Mar-2018
To qualify for Equipment Management support from AT&T, Customer must:
• Designate a Central Point of Contact (CPOC) for project and lifecycle activities.
• Designate a Site Contact and detailed address information for site access and Equipment
delivery at each site.
• Order, coordinate, provision, and pay all charges for a dedicated analog line at a site where a
wireless out-of-band modem is not available or where the wireless signal strength cannot be
verified. The analog line may not be provisioned using a private branch exchange, and a non-
dedicated (borrowed) analog line may be used only where (i) it is readily accessible to the
Equipment; (ii) it can be connected when needed and/or upon request and (iii) it remains
connected for the duration of the outage, trouble resolution, installation or logical change
activity.
Failure to provide a dedicated line may result in delays and limit proactive monitoring. Customer
is solely responsible for connecting a borrowed line and calling in the trouble when there is a loss
of service. Use of a borrowed line will not affect the Resolution Objectives, however the time for
measuring those objectives will not begin until (i) the borrowed line is connected, (ii) AT&T has
been advised by Customer that it is available, and (iii) AT&T has tested the line and found it is
working.
SD-1.7. SNMP Read-Only Access
Section Effective Date: 19-Mar-2018
Customer may request Simple Network Management Protocol (“SNMP”) Access, under which
AT&T grants Customer read-only access (“ROA”) to the edge routers at Customer sites. AT&T
will provide Customer distinct SNMP community strings for Customer to access select
Management Information Bases (“MIBs”) in the edge router via Customer's network management
system(s). The edge router will be access-list protected and limits SNMP Access to no more than
two Customer network management servers. Customer must provide AT&T the IP address(es)
of up to three (3) of the Customer network management server(s) that are configured for SNMP
ROA. If Customer elects to implement SNMP ROA, Customer is solely responsible for software
and hardware issues related to Customer’s network management servers. Customer
acknowledges that overuse of SNMP Access may place excessive demands on the Customer
edge router's processor or other components, which may impair performance of the Service.
AT&T is not responsible for any performance failures caused by Customer’s SNMP ROA
activities.
SD-1.8. Basic Inside Wire
Section Effective Date: 19-Mar-2018
Basic Inside Wire (“BIWi”) is available solely in support of a new installation to connect AT&T
managed Equipment to the interface point where the local access circuit terminates. Availability
of BIWi will be determined by AT&T based upon a review of information supplied by Customer in
the Site survey. BIWi is not available to support a move at an existing site, to implement a
demarcation extension, or to support wiring for other features (e.g., ISDN backup, out-of-band
management analog lines). BIWi is available only at sites located in the 48 contiguous United
States where the local access demarcation point is located inside the same physical premises as
the AT&T managed Equipment. BIWi provides up to 300 feet of Category 5 (CAT5) cable that
supports access speeds of Fractional T1, T1 and NXT1, as well as twisted pair cabling for
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Ethernet extensions, cable, and jacks. BIWi provides termination and labels at both ends of the
installed cable at the installed jacks as well as continuity testing. BIWi provides installation of all
necessary cable at the site on a single floor, including as necessary, cable pull (a) through the
support structure of a suspended ceiling if that ceiling does not exceed a height of twelve (12)
feet; (b) through the interior portion of a wall, if no holes are required to be drilled in order to pull
through the cables, or (c) through empty (or pull string equipped) conduit existing at the site. BIWi
does not include: core drilling, fire-stopping, installation of surface raceway or conduit, or use of
mechanical lifts or scaffolding, cable runs that exceed three hundred (300) feet from the local
access demarcation point, removal and/or replacement of interlocking ceiling tiles, or installing or
painting of backboards.
There is no charge for BIWi. AT&T will transfer title to any cable or wire installed (and any
associated equipment installed with the cable or wire) to Customer upon completion and turnover
of the inside wire. Customer is responsible for all maintenance, repair, replacement and moves
of all inside wiring after completion of continuity testing by AT&T. BIWi is not available at sites
where Customer has elected to perform self-installation.
SD-1.9. Withdrawal of Service or a Service Component
Section Effective Date: 19-Mar-2018
AT&T may discontinue providing service upon 12 months’ notice, or discontinue a service
component upon 120 days’ notice, but only where AT&T generally discontinues providing the
service or service component to similarly-situated Customers.
SD-1.10. Service Restoration
Section Effective Date: 19-Mar-2018
AT&T will provide trouble resolution, repair and restoration. Support is provided remotely or by
technician dispatch. The length of time to restore Service (“Resolution Objective”) depends on
the specific nature of the event impacting the service. Standard intervals for time to restore the
service are set forth in the table below. The intervals shown are provided for planning purposes
only.
Standard Intervals for Time to Restore
Event Type
Resolution Objective
Failures that do not require a technical
dispatch in the contiguous 48 states
4 hours
Failures that do not require a technical
dispatch in Alaska, Hawaii and US territories
8 hours
Failures requiring a technical dispatch in the
contiguous 48 states
8 hours
Failures requiring a technical dispatch in
Alaska, Hawaii and US territories
16 hours
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SD-1.10.1. Problem Severity Code Definitions
Section Effective Date: 19-Mar-2018
Customer defines the severity of a problem when a call is placed to AT&T. The following
definitions are provided as guidance to assist the Customer to appropriately assign the severity
of a problem.
Severity of a Problem
Severity
Definitions
Critical
Critical problem that stops Customer from
functioning. The network, service or
product is unusable and Customer is
completely out of service.
Major
Major problem with severe impact on
Customer business, but does not stop it
from functioning. The network, service or
product is interrupted or severely degraded
and Customer is not able to work at
expected levels of performance and
productivity. Also used for Severity 1
problems with a 100% bypass but awaiting
final resolution.
Minor
Minor problem that does not seriously affect
service or network availability or
functionality used in Customer business.
Informational
No problem. Customer business is not
impacted. There is no significant impact to
the user. Incident may be a request for
service information or a suggestion.
SD-2. AT&T Dynamic Traffic Management
Section Effective Date: 19-Mar-2018
AT&T Dynamic Traffic Management is offered in two versions: AT&T Dynamic Traffic
Management - Enterprise and AT&T Dynamic Traffic Management - Public Safety.
Enhanced PTT subscribers may also receive or subscribe to AT&T Dynamic Traffic Management,
which uses Quality of Service (“QoS”) network technology to enable qualified business and
government Customers to receive a differentiated (i.e., enhanced versus “best effort”) 4G LTE
network experience for qualified business application data traffic originated on and traversing over
the AT&T-owned domestic 4G LTE network (i.e., excluding microcells, AT&T Wi-Fi service, and
roaming partners’ networks). An enhanced, or higher, QoS is particularly valuable during times
of network congestion. AT&T Dynamic Traffic Management is available only for use with
Customer’s qualified business applications that are used solely in connection with the
transmission of Customer’s data to and from its authorized CRU lines’ 4G LTE-AT&T Dynamic
Traffic Management enabled Equipment, including routers, determined solely by AT&T (each, a
“Business Application”). Business Applications may include, without limitation, video
calling/conferencing, push-to-talk (including AT&T Enhanced PTT), dispatch, logistics, command
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and control, telematics, and monitoring applications used by Customer’s authorized CRU lines.
Customer understands and agrees that AT&T Dynamic Traffic Management may not be used with
applications primarily intended for use by consumers, including but not limited to, (a) mobile video
transmission applications, (b) applications that transmit data to and from the internet. AT&T
Dynamic Traffic Management is available only to a Customer’s Corporate Responsibility Users
(“CRUs”) and only within the Domestic Coverage Area (i.e., U.S., Puerto Rico and U.S. Virgin
Islands) and only for AT&T Enhanced PTT traffic originated on and traversing over the AT&T-
owned 4G LTE network, excluding microcells, MetroCells, AT&T Wi-Fi service and roaming
partners’ networks. When Customers subscribe to AT&T Dynamic Traffic Management, data
usage from enabled devices is separately tracked and billed.
When statistically significant and reliable data are available, AT&T shall provide monthly summary
reporting on various network performance metrics designed to help Customer compare the
measured performance of its qualified CRU lines provisioned with AT&T Dynamic Traffic
Management to the estimated “best efforts” performance for data traffic over the domestic AT&T
4G LTE network. These reports can be used to assist Customer in evaluating the benefits of
AT&T Dynamic Traffic Management. The performance reports will be made available
electronically to Customer via the AT&T Premier web portal (or, if applicable, the AT&T Enterprise
on Demand (“EOD”) web portal) through which Customer and its authorized representatives place
orders and manage Customer’s wireless account(s) in accordance with the terms and conditions
of the Agreement, including without limitation the AT&T Premier Attachment (or, if applicable, the
EOD Attachment). Reports will be made available no earlier than 45 days after the end of each
month and no later than the time AT&T reasonably requires to compile the report. Customer
understands that AT&T’s wireless network is evolving and that technology changes may impact
the descriptions of the Network Metrics (i.e., the measurement calculations). Accordingly, AT&T
reserves the right to modify and/or discontinue the AT&T Dynamic Traffic Management
performance reporting at any time, for any reason, upon notice to Customer. Notwithstanding the
Confidentiality provision otherwise applicable between Customer and AT&T, Customer
acknowledges and agrees that the Network Metrics and the performance reports to be provided
pursuant to this Attachment constitute AT&T’s highly sensitive, confidential and proprietary
network information (the “AT&T Confidential Information”). Accordingly, Customer shall, for a
period of three (3) years following its disclosure to Customer: (a) hold the AT&T Confidential
Information in confidence; (b) use the AT&T Confidential Information only for purposes of this
paragraph; and (c) not disclose the AT&T Confidential Information to third-parties without AT&T’s
prior written consent, except that Customer may disclose the AT&T Confidential Information (i) to
its employees, agents and contractors having a need-to-know (but only if such agents and
contractors are not direct competitors of AT&T and agree in writing to use and disclosure
restrictions as restrictive as this paragraph); or (ii) to the extent authorized to be revealed by law,
government authority or legal process (but only if such disclosure is limited to that which is so
authorized and prompt notice if provided to AT&T to the extent practicable and not prohibited by
law, government authority or legal process). CUSTOMER ACKNOWLEDGES AND AGREES
THAT ANY BREACH OR THREATENED BREACH OF THIS PARAGRAPH IS LIKELY TO
CAUSE AT&T IRREPARABLE HARM FOR WHICH DIRECT MONEY DAMAGES MAY NOT BE
SUFFICIENT OR APPROPRIATE. CUSTOMER THEREFORE AGREES THAT THE
LIMITATION OF LIABILITY REGARDING INDIRECT, INCIDENTAL, CONSEQUENTIAL,
PUNITIVE, RELIANCE, AND SPECIAL DAMAGES CONTAINED IN THE GENERAL TERMS
AND CONDITIONS PORTION OF THE AGREEMENT DOES NOT APPLY TO ANY BREACH
OF THIS PARAGRAPH BY CUSTOMER. IN ADDITION, AT&T IS ENTITLED TO RECEIVE
INJUNCTIVE OR OTHER EQUITABLE RELIEF TO REMEDY OR PREVENT ANY BREACH OR
THREATENED BREACH OF THE OBLIGATIONS IN THIS PARAGRAPH.
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SD-2.1. AT&T Dynamic Traffic Management – Enterprise
Section Effective Date: 01-Feb-2018
Customers using AT&T Dynamic Traffic Management - Enterprise acknowledge and agree that
AT&T Dynamic Traffic Management - Enterprise (a) does not provide priority access to the AT&T-
owned domestic 4G network; and (b) does not prioritize Customer’s qualified business application
data traffic ahead of all other data traffic, as other data traffic may receive a similar or higher QoS.
AT&T Dynamic Traffic Management - Enterprise must be added to each CRU line separately.
Per CRU line requirements include purchase of Enhanced PTT with an AT&T Dynamic Traffic
Management - Enterprise plan and a qualified feature phone or qualified smartphone provisioned
with the appropriate feature code.
SD-2.2. AT&T Dynamic Traffic Management – Public Safety
Section Effective Date: 01-Feb-2018
AT&T Dynamic Traffic Management - Public Safety is limited to customers responsible for public
safety and critical infrastructure, as more fully set forth below. Entities eligible for AT&T Dynamic
Traffic Management - Public Safety are collectively referred to as “public safety customers”. AT&T
Dynamic Traffic Management - Public Safety also provides priority access to the domestic AT&T
4G LTE network for a Customer’s authorized CRU subscribers. AT&T Dynamic Traffic
Management - Public Safety (a) is available only within the Domestic Coverage Area (i.e., the
United States, Puerto Rico and the U.S. Virgin Islands) and only for Customer’s qualified business
application data traffic originated on and traversing over the AT&T-owned domestic 4G LTE
network; (b) does not prioritize Customer’s qualified business application data traffic ahead of all
other data traffic, as other data traffic may receive a similar or higher QoS; (c) provides Customer’s
authorized CRUs priority access to available AT&T 4G LTE network resources but will not
preempt other users’ use of the network in order to make network resources available; and (d) is
not to be used for any data traffic originated on or over the Internet, other than Customer’s
qualified business application data traffic.
AT&T Dynamic Traffic Management - Public Safety is available to: qualified state and federal
public safety and emergency management organizations (e.g., police and fire departments, EMT
services departments, and emergency management agencies) that have been assigned one of
the following North American Industry Classification System (NAICS) codes: 621910 (Ambulance
Safety Services); 922110 (Courts); 922120 (Police Protection); 922130 (Legal Counsel and
Prosecution); 922140 (Correctional Institutions); 922150 (Parole Offices and Probation Offices);
922160 (Fire Protection); 922190 (Other Justice, Public Order, and Safety Activities); 928110
(National Security); and entities that are engaged in the same or similar activities as those covered
by the foregoing NAICS codes; and entities responsible for the construction, maintenance and
repair of critical infrastructure that have been assigned one of the following NAICS codes: Energy
-333611 (wind turbine); 221122 (Electric Power Distribution); 221210 (Natural Gas Distribution);
Nuclear Reactor - 221113 (Nuclear Electric Power Generation); 562211 (Hazardous Waste
Treatment and Disposal); Communication - 517110 (Telecommunications, wired); 517212
(Cellular and other Wireless Telecommunications); 238210, 334290 and 561620 (Alarm
Systems); Water - 221320 (Sewage Treatment Facilities); 221310 (Water Supply and Irrigation
Systems); Transportation - 482111 (Railway Transportation); 481111 (Passenger Air
Transportation); 481112 (Freight Air Transportation); 483111 (Shipping Transportation); 926120
(Transportation Administration), 491110 (Postal Service); Healthcare and Public Health - 621112
(Health Care Practitioners); 923120 (Public Health Programs); Critical manufacturing - 237310
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(Highway, Street and Bridge Construction); 811310 (Industry Equipment Repair); 236210
(Industrial Building Construction); 211130 (Extraction); 236220 (Construction Management);
Chemical - 561612 (Protective Services); 541330, 541690 (Chemical Engineering and
Consulting); 239210 (Pharmaceutical); Information Technology - 541512 (Computer Integration);
541519 (Computer Disaster Recovery).
The traffic of qualified state and federal public safety and emergency management organizations
will be assigned a higher QoS than the traffic of other public safety customers. AT&T reserves
the right to exercise its sole and reasonable discretion to determine which public safety customers
may purchase AT&T Dynamic Traffic Management - Public Safety and the extent to which such
customers may deploy and utilize AT&T Dynamic Traffic Management - Public Safety within their
organizations. AT&T further reserves the right to limit or terminate use of AT&T Dynamic Traffic
Management - Public Safety by customers that AT&T determines to be using AT&T Dynamic
Traffic Management - Public Safety in a manner inconsistent with the expressed or intended use
of AT&T Dynamic Traffic Management - Public Safety. Customers choosing to combine AT&T
Dynamic Traffic Management - Public Safety with AT&T Enhanced Push-to-Talk will be billed for
both services on a bundled basis for each authorized CRU line. Customers also have the ability
to designate AT&T Enhanced Push-to-Talk as a qualified business application and not as a
bundled offer with AT&T Dynamic Traffic Management - Public Safety, in which case Customer
will be billed for each service separately.
SD-3. Availability - Summary
AT&T Enhanced PTT is available for use by CRUs (Corporate Responsible Users) and IRUs
(Individual Responsible Users). AT&T EPTT capabilities and related services are available to
each type of user as follows:
AT&T EPTT Capabilities and Related Services
Features
Enterprise -
IRU
Enterprise -
CRU
FirstNet -
IRU
AT&T EPTT Standard
One to One Call
Yes
Yes
Yes
Group Call
Yes
Yes
Yes
Secure Messaging
Yes
Yes
Yes
Mapping/Location
Yes
Yes
Yes
Basic user interface
Yes
Yes
Yes
LMR user interface
Yes
Yes
Yes
Corporate Admin Tool
(CAT)
No
Yes
No
Integrated Dispatch
Console (IDC)
No
Yes
Yes
LMR interoperability
Yes
Yes
Yes
AT&T EPTT Advanced
User Awareness
No
Yes
No
Emergency Calling
No
Yes
No
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AT&T EPTT Capabilities and Related Services
Features
Enterprise -
IRU
Enterprise -
CRU
FirstNet -
IRU
Other
AT&T Dynamic Traffic
Management (ADTM)
N/A
Yes
N/A
SD-4. Important Information
Section Effective Date: 19-Mar-2018
• Enhanced PTT (the “Service”) is available to Customers with a qualified AT&T business or
government agreement (“Business Agreement”) and their Customer Responsibility Users
(“CRUs”) and Individual Responsibility Users (“IRUs”) and to consumers with a qualified AT&T
rate plan and Enhanced PTT subscription. Consumers will have access to features permitted
to IRUs. The Corporate Administrator Tool and Integrated Dispatch are only available for use
with AT&T-subscribed CRUs.
• The Service may not be available for purchase in all areas. Service performance is subject
to transmission limitations and terrain, system, capacity and other limitations. AT&T mobility
coverage maps are available at www.att.com/business/datacoverage. Coverage areas of
other mobility carriers are available from the carriers.
• The Service is a voice-over-IP solution that requires wireless connectivity on compatible
cellular or Wi-Fi networks. Availability, security, speed, timeliness, accuracy and reliability of
service are not guaranteed. The Service is not compatible with traditional circuit-switched
voice calls or certain other AT&T wireless services, including, without limitation, voice
mail/Visual Voice Mail, AT&T Address Book, and Wireless Priority Service. The Service
requires use of a supported wireless device or a personal computer running Windows Vista
OS or higher (“PC”). Use of the AT&T Enhanced PTT client for PCs may require that the PC
be connected to AT&T’s wireless network through an integrated modem/aircard or mobile
hotspot device with service on a qualified data plan.
• Wireless data coverage is not available in some areas. AT&T mobility coverage maps are
available at www.att.com/business/datacoverage. Wireless data coverage is subject to
transmission limitations and terrain, system, capacity and other limitations. Usage of the
Service on networks other than AT&T wireless data networks is dependent on proper
configuration and quality of the network connection. AT&T is unable to provide troubleshooting
or configuration assistance for third-party network connections, and may be limited in its ability
to troubleshoot service problems for transmissions made using such networks. AT&T provides
no customer support in this regard other than verifying connectivity to the AT&T network and
the Service.
• If the Customer attempts to access Enhanced PTT via a custom Access Point Name (APN),
through a firewall or from a network that does not meet the specified network access criteria,
the Service will not work.
• The Service is not compatible with devices provisioned through the AT&T Control Center or
Enterprise-On-Demand platforms.
• Use of the Service on supported smartphones and tablet devices requires download and
installation of the Enhanced PTT client software onto such devices. Other software on an end
user’s device may impair the Service’s performance. The Enhanced PTT client must be
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installed on an AT&T certified device, and the device must be activated and turned on in order
to originate and or receive Enhanced PTT calls. Use of non-certified devices is not fully
supported. A list of certified devices is available at www.att.com/epttdevices, which is subject
to change. Not all service features and functionality are available on all certified devices. See
an AT&T representative for details.
• The Service can be used while roaming on compatible domestic and international wireless
carriers. For AT&T subscribers, applicable roaming rates apply to international carriers except
while roaming in Mexico and Canada. For other carriers’ subscribers see applicable carriers’
roaming rates.
• Usage - For AT&T subscribed devices, usage of Enhanced PTT requires a subscription to an
Enhanced PTT rate plan or qualified AT&T data rate plan. Data service/plan requirements
vary by device category. Certain AT&T data plans (e.g., MEdia Net) are not eligible. Data
usage incurred by AT&T subscribers within AT&T’s domestic wireless data network footprint
in the United States and with roaming partner networks in Mexico and Canada in connection
with Enhanced PTT will not be charged against the Customer’s associated data plan. All other
AT&T data usage, including, without limitation, data usage incurred in connection with use of
the Service on all other international cellular roaming networks, will be charged at AT&T’s
scheduled rates. Data usage for devices subscribed to other carriers is billed to the user by
the subscribed carrier at that carrier’s rates.
• Customer and its End Users must accept the EPTT End User License Agreement (“EULA”)
that may be found at www.att.com/eptteula prior to installation and use of the Enhanced PTT
software on subscribed devices.
• AT&T or its suppliers retain all right, title and interest, including, without limitation, all
intellectual property rights, in and to all such software.
• Unless otherwise prohibited, this offer is subject to change, and may be modified, terminated,
or discontinued at any time without notice.
SD-5. Privacy
Section Effective Date: 01-Feb-2018
Use of the Service with the Integrated Dispatch and mobile mapping features allows End Users’
devices to be located and provided to the Customer, and the Integrated Dispatch feature enables
the recording and storage of audio calls. Use of the Integrated Dispatch logging capability enables
certain personally identifiable information to be stored and accessible by AT&T and/or its
Enhanced PTT service supplier. Customer must comply with all applicable privacy, consumer
data protection laws, marketing and data best practices, and all laws that apply to collecting,
accessing, storing, processing, using, disclosing and securing user data, including any obligations
to notify and obtain consents of end users regarding any Customer or AT&T access to End Users’
personal information. The Service must not be used to conduct unauthorized surveillance.
SD-6. End User License Agreement (EULA)
Section Effective Date: 01-Feb-2018
The EULA must be accepted before Customer's first use of the Service. If Customer does not
accept the terms of the EULA, Customer must not use the Service. Customer must accept the
EULA as the party liable for each CRU, and agrees in such case that the CRU will comply with
the obligations under the EULA. Customer is responsible for providing each CRU of an enabled
mobile device with a copy of the EULA. The Customer and the CRU are individually and jointly
liable under the EULA.
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Pricing (P)
P-1. Rate Table AT&T EPTT Standard-FEA-MC: AT&T Enhanced Push-to-Talk — Monthly
Charge
Section Effective Date: 19-Mar-2018
Rate Table AT&T EPTT standard -FEA-MOTC: AT&T Enhanced Push-to-Talk - Monthly and
Sne-Time Charges
Description
One-Time
Charge
Notes
Unlimited EPTT Add-on Feature*
<RAS>
Unlimited EPTT Only Plan*
<CVC>
Unlimited EPTT Only Plan* with
Dynamic Traffic Management -
Enterprise
<CVC><DTE>
Unlimited EPTT Only Plan* with
Dynamic Traffic Management - Public
Safety
<CVC><DPS>
Unlimited EPTT Add-on Feature* with
Dynamic Traffic Management -
Enterprise
<CVC><DTE>
Unlimited EPTT Add-on Feature* with
Dynamic Traffic Management - Public
Safety
<CVC><DPS>
Unlimited EPTT Add-on Feature* with
Dynamic Traffic Management Critical
Infrastructure
<CVC><DPS>
Unlimited EPTT Service for mobile
devices without AT&T wireless voice
service*
<XXX>
Unlimited EPTT IDC - per dispatcher*
<YYY>
Enhanced PTT IP Interoperability
Service
<PIO><SL3>
Enhanced PTT Interoperability LMR
LTE Interoperability via Inter-
Subsystem Interface (ISSI)
$7,500.00
<PIO>
<SL1>
LMR LTE Interoperability via Console
Subsystem Interface (CSSI)
$7,500.00
<PIO>
<SL1>
LMR LTE Interoperability via Radio over
IP (RoIP)
$2,500.00
<PIO>
<SL1>
Enhanced PTT Interoperability LMR
LTE Interoperability via Inter-
Subsystem Interface (ISSI)
<PIO><SL2>
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Rate Table AT&T EPTT standard -FEA-MOTC: AT&T Enhanced Push-to-Talk - Monthly and
Sne-Time Charges
Description
One-Time
Charge
Notes
LMR LTE Interoperability via Console
Subsystem Interface (CSSI)
<PIO><SL2>
LMR LTE Interoperability via Radio over
IP (RoIP)
<PIO><SL2>
EPTT VPN Connectivity Setup
$600.00
<PRO>
EPTT VPN Repeat Site Visit
$500.00
<PRO>
EPTT VPN Router Activation
$1,000.00
<PRO>
EPTT VPN Managed Service
<MSV>
Enhanced PTT IP Interoperability
Service
<SL3>
Notes:
All prices exclude applicable taxes, fees and surcharges. All fees paid are non-
refundable.
*
“Unlimited” refers to domestic usage of Enhanced PTT on the AT&T Mobility
cellular network only. Enhanced PTT usage for devices not subscribed to DTM
does not count as part of the usage or data allowance under the AT&T wireless
voice or data plans.
<RAS>
Requires additional subscription to qualified AT&T wireless voice service plan.
Not eligible for contract-based discounts.
<CVC>
Provides AT&T Enhanced Push-to-Talk calls only; no cellular voice calling
services other than calls to 911. No incoming voice calls are permitted. On
smartphone devices, requires subscription to a compatible wireless data
service or plan.
<DTE>
All authorized CRUs using AT&T Dynamic Traffic Management - Enterprise are
limited to 10 gigabytes (GBs) of usage per billing cycle; any data traffic sent by
an authorized CRU that exceeds the 10 GB usage cap will be handled on "best
effort" QoS.
<DPS>
All authorized CRUs usage of AT&T Dynamic Traffic Management - Public
Safety on any qualified Wireless Data Service Plan may not exceed 22 GB a
month for three consecutive months; AT&T reserves the right to require
Customer to move to another Plan if usage exceeds this limitation. AT&T may
proactively reassign Customer to another Plan upon notice to Customer, unless
prohibited under the Business Agreement or regulation.
<XXX>
Requires compatible mobile device that does not have associated AT&T wireless
service and a compatible wireless connection.
<YYY>
Provides AT&T EPTT service and Integrated Dispatch feature. Requires a
compatible Internet connection.
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Rate Table AT&T EPTT standard -FEA-MOTC: AT&T Enhanced Push-to-Talk - Monthly and
Sne-Time Charges
Description
One-Time
Charge
Notes
<PIO>
Provides voice bridge connection from an AT&T Enhanced PTT users to Land
Mobile Radio Push-to-Talk users. Requires compatible interoperability
equipment not sold by AT&T. Requires VPN Connectivity to AT&T Data
centers via separately quoted AT&T Solution or Customer provided VPN
connectivity.
<SL1>
Provides for a Site License for the supported protocol interface. A site is defined
as the physical location of the ingress/egress point for the IP connection to
Enhanced PTT data centers.
<SL2>
Provides a per group or per "talkpath" pricing option for interoperability where a
Talkgroup/Talkpath is and EPTT group linked to an LMR group.
<SL3>
Provides a per subscriber pricing option for interoperability where the
interoperability feature is added to a unique subscriber.
<PRO>
Provides Professional Services required for the engineering and implementation
of EPTT interoperability VPN.
<MSV>
Provides a Managed Service for the components of the EPTT Interoperability
VPN
- EPPT 10 MB VPN Connectivity
- AT&T Managed Router
- 10 MB MPLS Port
- Switched Ethernet
P-1.1 Rate Table AT&T EPTT Advanced-FEA-MC: AT&T Enhanced Push-to-Talk —
Monthly Charge
Rate Table AT&T EPTT Advanced -FEA-MOTC: AT&T Enhanced Push-to-Talk - Monthly
and One-Time Charges
Description
One-Time
Charge
Notes
Unlimited AT&T EPTT Advanced Add-
on Feature**
<RAS>
Enhanced PTT Interoperability LMR
LTE Interoperability via Inter-
Subsystem Interface (ISSI)
$7,500.00
<PIO>
<SL1>
LMR LTE Interoperability via Console
Subsystem Interface (CSSI)
$7,500.00
<PIO>
<SL1>
LMR LTE Interoperability via Radio over
IP (RoIP)
$2,500.00
<PIO>
<SL1>
Notes:
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Rate Table AT&T EPTT Advanced -FEA-MOTC: AT&T Enhanced Push-to-Talk - Monthly
and One-Time Charges
Description
One-Time
Charge
Notes
All prices exclude applicable taxes, fees and surcharges. All fees paid are non-
refundable.
*
Includes monthly charges for ADTM and LMR Interoperability
**
“Unlimited” refers to domestic usage of Enhanced PTT on the AT&T Mobility
cellular network only. Enhanced PTT usage for devices not subscribed to DTM
does not count as part of the usage or data allowance under the AT&T wireless
voice or data plans.
<RAS>
Requires additional subscription to qualified AT&T wireless voice service plan.
Not eligible for contract-based discounts.
<PIO>
Provides voice bridge connection from an AT&T Enhanced PTT users to Land
Mobile Radio Push-to-Talk users. Requires compatible interoperability
equipment not sold by AT&T. Requires VPN Connectivity to AT&T Data
centers via separately quoted AT&T Solution or Customer provided VPN
connectivity.
<SL1>
Provides for a Site License for the supported protocol interface. A site is defined
as the physical location of the ingress/egress point for the IP connection to
Enhanced PTT data centers.
End of Service Guide