Active Audio
Routing
Event
Next Audio Routing
PTT through AT commands.
Audio routing shall follow 'Us-
ing AT commands (virtual
PTT)' in
.
Any handset is taken off hook.
• Radios with Dual Control Head or
Multi Radio Control features enabled:
- Audio routing shall
follow 'Group Call'
in
• Others:
- To another handset if the other
handset is a GCAI (receiver or re-
ceiver-transceiver) handset.
- Else, audio routing
shall follow 'Group Call'
in
TELCO handset is taken off hook.
If the previous active accessory is a
hands-free microphone on RAC, audio
shall be routed through TELCO handset,
else routing remains unchanged unless
PTT
is pressed.
68015000180-MR
Appendix C : Audio Routing and PTT Hook Interactions
152