for our custom pbx solution we need to make phone look like ringing while it is
doing outgoung call instead.
1) Phone will dial pbx.
2) When pbx will answer the call, it is the signal for phone to start ringing
3) User press either green or red key and these are transferred to the pbx to connect or hangup the call
We don't need to play to the uplink, but to make ringing sound only while outgoing call is active.
Would this be possible to do with VoIP Audio Services API?
Target device is Nokia E52.
Thank you for your help