The system uses various ringing sequences to indicate call types. For example, internal and external calls can have different rings, called distinctive ringing.
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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.
