Motorola MTM800 - 2.1.7 Non Selectable Talkgroups (Hidden Talkgroups); 2.1.8 Audio Input and Output; 2.1.9 Talk Time Limit; 2.1.10 Receiving a Group Call

2-8 Services and Feature Description
6866537D87-F Chapter 2 - MTM800 Product Information Manual September 2008
2.1.7 Non Selectable Talkgroups (Hidden Talkgroups)
It is possible to programme non selectable talkgroups, these Talkgroups are not seen by the user
during scrolling, are non-selectable, are programmed as receive only and are only seen during a
received call.
Benefits:
❏ Non Selectable Talkgroups can help to shorten confusingly long Talkgroup Lists in the
terminal and therefore ease operation
❏ Groups where the user is not allowed to initiate a call (e.g. announcement TGs) are hidden
and do not confuse the user
2.1.8 Audio Input and Output
Incoming group call audio will be routed to an external accessory/speaker or Telephone Style
Handset.
2.1.9 Talk Time Limit
The terminal can limit the amount of time the user can continue to talk in a group call according to a
provisioned value defined in the CPS. The user will be warned a short time before the talk time
expires.
2.1.10 Receiving a Group Call
When the terminal is in group mode, it is able to receive group calls without any user intervention.
When the terminal receives an incoming group call, it may be signalled by a short alert tone from the
loudspeaker. This will be followed by the speech.
No user action is needed to clear the call which is cleared by the call owner (normally the SwMI).
2.1.11 Emergency Group Call
Emergency Group call is described in Section 5 "Emergency Operation (TMO)".
2.1.12 Talkgroup Scanning
This is a user selectable option that enables 1 of 20 scan lists to be selected. Each scan list may
contain up to 20 talkgroups that will be monitored for activity. If any activity is detected the terminal
will ‘land on’ the talkgroup and the terminal will join the call, upon call completion the terminal
resumes scan operation.
Features and Benefits:
❏ Ability to monitor more than one group at a time
❏ Allows the user to be in contact with a number of talk groups – calls are not missed
❏ Number of talkgroups in a scan list has been enhanced to 20 specifically for transport
applications
❏ CPS programming allows users to create/modify scan lists.
❏ Scan On/Off is user selectable.
❏ User can ‘cancel’ a scan call if not important to focus on other activities
❏ As Emergency Mode has highest priority, TG Scanning is disabled when emergency mode is
entered - this enhances security.