Specifications

Advanced Phone Features
153
3. Click Confirm to accept the change.
Note
To send RTP stream via a multicast paging key:
1. Tap the multicast paging key when the phone is idle.
The phone sends RTP to a preconfigured multicast address (IP: Port). Any phone
configured to listen to the multicast address may automatically answer the paging
call and play receiving RTP. For more information on how to configure a phone to
listen to a multicast, refer to Receiving RTP Stream on page 154. For both sending
and receiving of the multicast RTP, there is no SIP signaling involved.
The multicast paging key illuminates solid green.
The following figure shows a multicast RTP session on the phone:
2. Tap the Hold soft key to place the current multicast RTP session on hold.
3. Tap the End Call soft key to cancel the multicast RTP session.
Note
To send RTP stream via a paging key list:
1. Tap the paging list key when the phone is idle.
If G722 codec is used for multicast paging, the touch screen will display the icon to
indicate that it is providing high definition voice.
Default codec for multicast paging is configurable via web user interface only.
Multicast RTP is one way only from the sender to the multicast address(es) (receiver). For
outgoing RTP multicasts, all other existing calls on the phone will be placed on hold.