Ringing tones are produced by an incoming call. Feedback tones are those that you
hear through the handset (receiver) or the speaker, if you have one.
Ringing Tones
1 ring — A call from another extension.
2 rings — A call from outside or from the attendant.
3 rings — A priority call from another extension, or a call from an Automatic
Callback call that you placed.
half ring — A call redirected from your voice terminal to another because Send All
Calls or Call Forwarding — Follow Me is active.
intercom ring — A call directed to you by the Intercom feature.
Feedback Tones
busy tone — A low-pitched tone repeated 60 times a minute; indicates that the
number dialed is in use.
Tones and Their Meanings