To use call completion:
When the called party is busy, the following prompt will appear on the touch screen of the phone:
•
Tap OK, the phone returns to the idle screen and call completion is activated.
When the called party becomes idle, the following prompt appears on the touch screen of the phone:
•
Tap OK to redial the number.
•
Call completion is not available on all servers. For more information, contact your system administrator.
•
IP phone supports call completion using the SUBSCRIBE/NOTIFY method, which is specified in draft-
poetzl-sipping-call-completion-00, to subscribe to the busy party and receive notifications of their status
changes.
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Matrix SPARSH VP710 User Guide