Yealink VP530 - Manual (Page 70)

User Guide for the VP530 IP Video Phone
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You can also configure auto redial via web user interface at the path Phone->Features.
To use auto redial:
When the called party is busy, the following prompt will appear on the LCD screen of the
phone:
1. Press the OK soft key to activate auto redial. The following prompt will appear on
the LCD screen of the phone:
2. Wait for a period of time or press the OK soft key to redial the phone number.
The phone will retry as many times as you configured until the called party is idle.
You can use the call completion feature to notify the caller of a failed call when the
callee becomes available to receive a call.
To configure call completion via phone user interface:
1. Tap ->Call Feature->Others>Call Completion.