Yealink SIP-T20 User Manual page 71

You can use call completion to notify the caller who failed to reach a desired callee
when the callee becomes available to receive a call.
To configure call completion via phone user interface:
1. Press
2. Select F e atures->Call Completion.
3. Press
4. Press
Call completion is configurable via web user interface at the path F eatures->General
Inf ormation.
To use call completion:
When the called party is busy, the following prompt will appear on the LCD screen of the
phone:
1. Press
When the called party becomes idle, the following prompt appears on the LCD
screen of the phone:
2. Press
Not e
Call completion is not available on all servers. For more information, contact your system
administrator.
.
1. Call Completion:
◄ Enable ►
or to select Enable from the Call Completion field.
to accept the change.
Call Completion
Wait for 112 ?
. The phone returns to the idle screen and call completion is activated.
Call Completion
Dial 112 ?
to redial the number.
Basic Call Features
59