Yealink VP530 - Manual (Page 97)

Advanced Phone Features
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4. Tap the pull-down list of TV Format and then select PAL or NTSC.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
6. Tap to return to the idle screen.
You can also configure TV output via web user interface at the path Phone->Features.
Music on hold (MOH) is the business practice of playing recorded music to fill the
silence that would be heard by the callers who have been placed on hold. To use this
feature, you should specify a SIP URI pointing to a Music on Hold Server account. When
placing a call on hold, the phone will invite this SIP URI to the Music on Hold Server
account. The Music on Hold account automatically answers to the SIP INVITE messages
and immediately plays audio from some source located anywhere (LAN, Internet) to the
held party. Contact your system administrator for the SIP URI.
To configure music on hold server via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.
3. Click on Advanced.
4. Enter the SIP URI in the Music On Hold Server field.
5. Click Confirm to accept the change.
When you have placed a call on hold, the held party can then hear the music.
Note All involved parties cannot use encrypted RTP (SRTP).