Table of Contents
Advertisement
30 | Services and Features
Note: Not all infrastructures support this feature. Consult with your service provider before enabling this
feature.
Timed Talkgroup Change
This feature allows switching between the original and the predefined talkgroup (TMO or DMO) by using the O
button function.
The radio attaches to the selected, predefined talkgroup only for a specified amount of time (Functional Timer).
After the timer expires, the radio returns to the previously attached, original talkgroup. Returning to the original
talkgroup can also be assigned to the second press action of the button.
A campus university combines four buildings: A, B, C, and D. A security procedure is to raise an
internal alarm for the building and then notify the entire campus. The staff in each campus building
configures radios with three types of talkgroups.
1 Internal Communication Talkgroups – regular talkgroups for the entire campus and individual
buildings to communicate between staff members.
2 Internal Alarm Talkgroups – emergency talkgroups, individual for each building.
3 External Alarm Talkgroup – an emergency talkgroup to alert the entire campus.
The staff in individual buildings uses the dedicated Internal Communication Talkgroups for daily
routines and the Internal Alarm Talkgroup for safety procedures. The campus staff in every building
also scans the External Alarm Talkgroup.
The campus IT administrator assigned in CPS the Timed TG Change function to a One-Touch
Button to switch between the original Internal Communication Talkgroup, and the Internal Alarm
Talkgroup. This way the radio users can immediately switch to the emergency talkgroup and start
an internal emergency call.
One of the staff members in building A is in an emergency situation. The person presses the One
Touch Button to switch to the Internal Alarm Talkgroup and starts the emergency call. The other
staff members in building A hear the voice communication on the Internal Alarm Talkgroup. It
turns out that the emergency is serious and one of the building administrators starts the global alarm
for all campus buildings.
Call Ownership
The radio can be given the call ownership of a talkgroup call. When the radio is the call owner, it sends an appropriate
TETRA signaling to end the call.
Note: The SwMI decides about the ownership of a call.
Transmission During Group Call
While receiving a group call, and the PTT during received Group Call is enabled, you may request to transmit by
pressing and holding the PTT. The system registers this action and informs you that the request has been queued.
If you release the PTT, the radio sends a message to the system withdrawing the request.
Call Restoration
If the radio roams to a new cell during a call, it attempts to continue the call on the new cell. Cell reselection and call
restoration procedures are employed for this attempt.
If the radio roams while being the transmitting party in the call, an announced cell reselection, if possible, is carried
out in the new cell.
Send Feedback
| |
PTION
Advertisement
Table of Contents
