M3SR Series 4100 Selecting the Service Mode
4.168 Operating Manual 6175.4760.02 – 01
VOICE_O_IPD
Voice transmission can be initiated by any
PTT key line. Data transmission is started
when IP data is detected at one of the IP inter-
faces (Ethernet or PPP via serial interface) if
no voice PTT is active.
If a PTT signal is activated during data trans-
mission, the data link is interrupted and a voice
link is established to the selected station(s).
Voice has priority over data. The called sta-
tion(s) automatically detects the service type
and reacts adequately.
Softkey Type Description
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