The caller hears a feedback as a vector processes the call. The feedback depends on one of the following origin classification of the call:
Internal call from another Communication Manager user.
Non Central Office (CO) incoming call over a Direct Inward Dialing (DID) or a tie trunk over which incoming digits are received.
CO incoming call over a CO or an automatic type tie trunk over which no digits are received.
For an internal or a non CO call, the caller hears no feedback until the call reaches one of the following vector steps:
For a wait command with the system music, ringback, an alternate music or audio source, the caller hears the system music, ringing, or the music or audio associated with an administered port.
For an announcement command, the caller hears the specified announcement.
For a busy command, the caller hears a busy signal.
When the call rings at a station, the caller hears a ringback tone.
For a CO call, the caller hears CO a ringback tone until the call reaches one of the following vector steps:
For a CO call that includes answer supervision after processing of an announcement or a wait-time command, the caller can hear any of the following:
Announcement when any announcement command is processed.
Ringback, silence, system music, or an alternate audio or music source when a wait-time command is processed.
Busy when a busy command is processed.
Ringback when the call rings at a station.
