Yealink SIP-T20 User Manual download pdf (Page 99)

Advanced Phone Features

Multicast paging key is configurable via web user interface at the path DSSKey->Line

Ke y.

You can also configure the phone to use a default codec for sending multicast RTP

stream via web user interface.

To configure a default codec for multicast paging:

1. Click on Features->General Information.

2. Select the desired codec from the pull-down list of Multicast Codec.

The default codec is G722.

3. Click Confirm to accept the change.

Note

To send RTP stream:

1. Press the multicast paging key when the phone is idle.

The phone sends RTP to a preconfigured multicast address (IP: Port). Any phone in

the local network then listens to the RTP on the preconfigured multicast address (IP:

Port). For both sending and receiving of the multicast RTP, there is no SIP signaling

involved.

The multicast paging key LED illuminates solid green.

If G722 codec is used for multicast paging, the LCD screen prompts "HD" to indicate that it

is providing high definition voice.

Default codec for multicast paging is configurable via web user interface only.

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Yealink SIP-T20 User Manual Page 99