Motorola MTP850 Ex Product Information Manual page 177

TMO Voice Services
18.4.5 PABX Gateway ID
This field displays the System Identity (ISSI) of the PABX Gateway that is used to access the
telephone interface for telephone call set up to a PABX. Selecting the reset option will display the
TETRA Standard ISSI.
18.4.6 PTT ID
Selecting this feature allows the ID of the terminal to be displayed at receiving terminals during
Group Calls (Express Group Call) and Private Calls (Express Connect Call).
18.4.7 Busy Override
During group call set up, the user may receive a busy indication from the system and although the
critical sites are busy and cannot support the Group Call, the user is allowed to request to transmit
the Group Call in the available sites.
To enable this option check the box.
18.4.8 Announcement Talkgroup Enable
An announcement call (also called multi-group call) is a special type of group call. It provides the
capability for the dispatcher or a terminal user to communicate with more than one talkgroup at the
same time.
A number of talkgroups are associated with an announcement talkgroup (ATG) so that when a call
is initiated to the ATG, all members of the associated talkgroups can receive the call. Each talkgroup
may have one associated ATG that it monitors (in addition to the selected talkgroup and the scan list
if activated).
An ATG has the highest priority level, thus enabling broadcast of the call to all these talkgroups.
Activation and deactivation of talkgroup scanning has no effect on the ATG scan list. The phone will
always monitor the ATG scan list.
This feature is Enabled/Disabled by clicking in the check box.
18.4.9 PTT Calls Back Displayed Party
If enabled, the user is able of return a voice call to the sender of a message or to any number that is
embedded in the message text.
Check box to enable this feature.
18.4.10 Transmission Timeout Timer
The entry in this field defines the period of time in seconds, that the user can PTT and talk during a
Private call. After this time the terminal will stop transmitting even though the PTT button is still
pressed.
The range for this option is 1 - 300 seconds and the default is 60 seconds.
18.4.11 Transmission Timeout Warning Timer
This field is a none editable and is related to the value set in the Transmission Time Out Timer field.
It defines the time in seconds, after which the terminal will alert the user prior to the expiry of the
Transmission Time Out Timer.
March 2009 Chapter 3 - MTP850 Ex/MTP810 Ex Product Information Manual
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