If so configured, users can record calls on-demand by pressing *1
On-demand recording will only work if the Advanced – General settings dial options include the correct recording permissions. SIP phones need to translate DTMF properly (RFC2833)
Some analogue phones may not properly relay the DTMF to the PBX, in which case on-demand recording may not work. For such phones configuring recording to always be on is a work-around.
Pressing *1 activates recording if not active, and de-activates recording if active. The last *1 to activate on-demand recording in a call will over-write previous recordings for that call. I.e. if recording was active, then de-activated and re-activated, only the re-activation recording will be present for that call.