User's Guide

and Channel Rocker only. A tone sounds for
every invalid input.
Dual Tone Multi Frequency
The Dual Tone Multi Frequency (DTMF) feature allows the
radio to operate in a radio system with an interface to the
telephone systems.
You can turn off the DTMF tone by disabling all radio tones
and alerts. See Turning Radio Tones/Alerts On or Off on
page 190 for more information.
Initiating DTMF Calls
Follow the procedure to initiate DTMF calls on your radio.
1 Press and hold the
PTT button.
2 Do one of the following:
• Enter the desired number to initiate a DTMF call.
•
Press
to initiate a DTMF call.
• Press to initiate a DTMF call.
Responding to Phone Calls as All Calls
When you receive a Phone Call as an All Call, the receiving
radio is unable to talkback or respond. The recipient user is
also not allowed to end the All Call.
When you receive a Phone Call as an All Call:
• The display shows the Phone Call
icon at the top right
corner.
• The display shows either All Call, Site All Call, or
Multi Site Call depending on the type of
configuration and Phone Call.
• The green LED blinks.
• Your radio unmutes and the incoming call sounds
through the speaker.
Responding to Phone Calls as Group
Calls
Follow the procedure to respond to Phone Calls as Group
Calls on your radio.
When you receive a Phone Call as a Group Call:
• The display shows the Phone Call icon and Phone
Call.
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