I have a CME system in Germany running 4.2.
I am told that it is standard in Germany to return a busy tone to a caller when a phone is in use.
Of course on a dual-line ephone-dn a call waiting notification is delivered when the phone is in use but the caller receives a ringing tone back.
I need to preserve the dual-line config as the user requires missed call data.
For the same reason I cannot configure huntstop channel to dump the call direct to voice mail.
All I really want to do is substitue the rining tone for a busy tone then dump the call to VM after the NOAN timeout.
Is it possible on CME?