The system uses various ringing sequences to indicate call types. For example, internal and external calls can have different rings, called distinctive ringing.
On analog phones, the distinctive ringing sequences are adjustable. On digital and IP phones, distinctive ringing is fixed as follows:
Internal call: Repeated single-ring
External call: Repeated double-ring
Ringback call: Single ring followed by two short rings
Ringing sequences work with the following call types:
Calls returning from park
Calls returning from hold
Transferring calls
Call back when free calls
Voicemail ringback calls
This feature is available across both multisite and small community networks.
