Motorola 4550 - Manual (Page 29)

Receiving and Making Calls
English
19
Procedure:
1 Press the programmed One Touch Access button to make
a Group or Private Call to the predefined alias or ID.
2 Press the PTT button to make the call. The green LED lights
up. The display shows the group/subscriber alias or ID, and
the Group/Private Call icon.
3 Wait for the Talk Permit Tone to finish (if enabled) and
speak clearly into the microphone.
OR
For Group Call only: Wait for the PTT Sidetone to
finish (if enabled) and speak clearly into the microphone.
4 Release the PTT button to listen. When the target radio
responds, the green LED blinks.
5 If the Channel Free Indication feature is enabled, you will
hear a short alert tone the moment the target radio releases
the PTT button, indicating the channel is free for you to
respond. Press the PTT button to respond.
OR
If there is no voice activity for a predetermined period of
time, the call ends.
6 Radio returns to the screen you were on prior to initiating the
call.
For a Private Call, you hear a short tone when the call ends.
Stopping a Radio Call
This feature allows you to stop an ongoing Group or Private Call
to free the channel for transmission. For example, when a radio
experiences a “stuck microphone” condition where the PTT
button is inadvertently pressed by the user.
Your radio must be programmed to allow you to use this
feature.
Procedure:
While on the required channel:
1 Press the programmed Transmit Interrupt Remote Dekey
button.
2 The display shows Remote Dekey.
3 Wait for acknowledgment.
4 The radio sounds a positive indicator tone and the display
shows Remote Dekey Success, indicating that the channel
is now free.
OR
The radio sounds a negative indicator tone and the display
shows Remote Dekey Failed.
The display shows Call Interrupted , and the radio sounds a
negative indicator tone until you release the PTT button, if it is
transmitting an interruptible call that is stopped via this feature.
NAG_6880309T15.book Page 19 Tuesday, March 9, 2010 11:47 AM