I have call manager 4.2(3).
If there is an IP phone1 call another IP phone2 and allready this IP phone2 has an existing call with IP phone3, but, IP phone1 hearing the ringing tone normally and don't know that IP phone2 has an existing call with IP phone3.
So, i am asking if i can configure a waiting message to IP phone1 to inform him that IP phone2 is allready have another call at the same time.
Thanks a lot for your cooperation.
To disable call waiting, set the 'Busy Trigger' setting on the line to 1.
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No version of callmanager has this feature (call waiting conformation).
So, either you disable call waiting, or learn that when phone rings free, either the person is not there, or do not want to answer.