Is possible to enable voicemail only when the extension does not answer a call? I mean, if I call 555 and it’s busy I don’t want to be redirected to voicemail, just received the busy tone, but if I call 555 and it’s ringing for 15 seconds without answer I want to leave a message in the VM.
It is possible with the custom applications, you can create custom apps with the required destinations, then use those numbers in the extensions status module