Hi , I have 81C system.
Most of time while dialing from M3900 sets to any IP phone we got release and try again , while the same IP phone is OK. I checked MC-32 card at the same time founf max of its channels are still free.Any body knows some thing abt it.
Most of time while dialing from M3900 sets to any IP phone we got release and try again , while the same IP phone is OK. I checked MC-32 card at the same time founf max of its channels are still free.Any body knows some thing abt it.