Yealink VP530 - Manual (Page 62)

User Guide for the VP530 IP Video Phone
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You can dial a hotline number immediately once you lift the handset, press the
speakerphone key or press a line key. You can also configure a period of delay time to
dial out the hotline number. The phone will dial out the hotline number automatically
after the specified delay time.
To configure the hotline via phone user interface:
1. Tap ->Call Feature->Others->Hotline.
2. Enter the desired number in the Number field.
3. Enter the delay time (in seconds) in the Hotline Delay field.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
5. Tap to return to the idle screen.
You can also configure the hotline via web user interface at the path Phone->Features.
Note The default delay time of the hotline feature is 2s.