User's Guide

and Channel Rocker only. A tone sounds for
every invalid input.
4.9.5.6
Dual Tone Multi Frequency
The Dual Tone Multi Frequency (DTMF) feature allows your
radio to operate in a radio system with an interface to the
telephone systems.
Disabling all radio tones and alert will automatically turn off
the DTMF tone.
4.9.5.6.1
Initiating DTMF Tone
Follow the procedure to initiate a DTMF tone on your radio.
1 Press and hold the PTT button.
2 Do one of the following:
• Enter the desired number to initiate a DTMF tone.
• Press
to initiate a DTMF tone.
• Press
to initiate a DTMF tone.
4.9.5.7
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.
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