System and method for announcing a message through a private branch exchange

摘要

There is provided an announcing method for a notification message in a PBX. The PBX stores the index of a predetermined hold notification message for a corresponding DID (Direct Inward Dialing) number upon incoming a call from a DID office line in a call processing buffer, connects the call between the office line and a corresponding extension line, then announces the hold notification message corresponding to the stored index when the call is placed on hold during the call.