User's Guide

NOTICE:

Your radio is not able to terminate a phone

call as a group call. The telephone user must

end the call. The recipient user is only

allowed to talk back during the call.

The display shows Ending Phone Call.

If the call ends successfully:

• A tone sounds.

• The display shows Call Ended.

If the call fails to end, the radio returns to the Phone

Call screen. Repeat step 3 or wait for the telephone

user to end the call.

5.9.6

Initiating Transmit Interrupt

An ongoing call is interrupted, when you perform the

following actions:

• Press the Voice PTT button.

• Press the Emergency button.

The receiving radio displays Call Interrupted.

5.9.7

Call Preemption

Call Preemption allows a radio to stop any in-progress

voice transmission and initiate a priority transmission.

With the Call Preemption feature, the system interrupts and

preempts ongoing calls in instances where trunked

channels are unavailable.

Higher priority calls such as an Emergency Call or an All

Call preempt the transmitting radio to accommodate the

higher priority call. If no other Radio Frequency (RF)

channels are available, an Emergency Call preempts an All

Call as well.

5.9.8

Voice Interrupt

Voice Interrupt allows the user to shut down an in-progress

voice transmission.

This feature uses reverse channel signaling to stop the in-

progress voice transmission of a radio, if the interrupting

radio is configured to Voice Interrupt, and the transmitting

radio is configured to be Voice Call Interruptible. The

interrupting radio is then allowed to make a voice

transmission to the participant in the stopped call.

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