Dtmf useage on dual node rpi

Does the ptt need to be active for the node to use dtmf input?
Mike

Never COS from the command line.
Likely always COS from radio input, but I never tested that with all duplex modes.
How else would you get audio to a radio channel driver ? Audio gate opens at COS.
Always active in a sip/iax connection off-hook.

Full duplex mode will switch the radio to Tx as soon as it receives. Be sure to set duplex = 1 if you don’t have a repeater or full duplex hotspot.