29
TMO Group Call
TMO Group Call 
General
A Group Call is an instant communication between you and 
others in a talkgroup that you select. Participants may join 
(late entry) and leave an on-going Group Call. A talkgroup is 
a predefined set of subscribers enabled to participate in and/
or invoke a Group Call and set up by your Service Provider.
Talkgroups appear on your display as names or numbers (for 
example: Sales, Service, Electricians, Talkgrp10).
The Talkgroups are divided into ranges. Each range may 
contain up to 16 talkgroups.
For ease of use, your MTM800 also provides the ability to:
• Perform an alphabetical search of the talkgroup aliases.
• Scroll through the entire talkgroup list using the navigation 
key.
• Dial a talkgroup (set up by your Service Provider).
• Organise your favourite talkgroups into one range called 
My Groups (set up by your Service Provider).
Your talkgroups may be organized into scan lists (set up by 
your Service Provider, or by yourself through the Menu). 
When you activate one of these scan lists, your MTM800 will 
continuously monitor the activities of the selected talkgroups.
By assigning priorities to the talkgroups defined in the scan 
list, you will be capable of accepting calls that have higher 
priority than the on-going call. For detailed information on 
scanning, see page 93.
You can start talkgroup, range, or scanning selection when 
the terminal is in idle mode or receiving a call. 
While being in a call and dialling another group 
simultaneously, do the following to talk in the current call:
1. Exit selection screen.
2. Press PTT and start talking.
6815321H01_KOR.book  Page 29  Thursday, November 13, 2008  8:06 AM