Advanced Phone Features
203
Receiving RTP Stream
You can configure the phone to receive a Real Time Transport Protocol (RTP) stream from the
pre-configured multicast address(es) and channel(s) without involving SIP signaling. You can
specify up to 31 multicast addresses and channel(s) that the phone listens to on the network.
Note
How the phone handles incoming multicast paging calls depends on Paging Barge and Paging
Priority Active parameters configured via web user interface.
Paging Barge
The paging barge parameter defines the priority of the voice call in progress. If the priority of an
incoming multicast paging call is lower than that of the active call, it will be ignored
automatically. If Disabled is selected from the pull-down list of Paging Barge, the voice call in
progress will take precedence over all incoming multicast paging calls. Valid values in the
Paging Barge field:
1 to 31
: Define the priority of the active call, 1 with the highest priority, 31 with the lowest.
Disabled
: The voice call in progress will take precedence over all incoming paging calls.
Paging Priority Active
The paging priority active parameter decides how the phone handles incoming multicast paging
calls when there is already a multicast paging call on the phone. If enabled, the phone will
ignore incoming multicast paging calls with lower priorities, otherwise, the phone will answer
incoming multicast paging calls automatically and place the previous multicast paging call on
hold. If disabled, the phone will automatically ignore all incoming multicast paging calls.
To configure multicast listening addresses via web user interface:
1.
Click on
Directory
->
Multicast
IP
.
2.
Select the desired value from the pull-down list of
Paging Barge
.
3.
Select the desired value from the pull-down list of
Paging Priority Active
.
4.
Enter the multicast IP address(es) and port number (e.g., 224.5.6.20:10008) which the
phone listens to for incoming RTP multicast in the
Listening Address
field.
5.
(Optional.) Enter the label in the
Label
field.
Label will appear on the touch screen when receiving the multicast RTP stream.
RTP stream is listened in the hands-free (speakerphone) mode by default. If you want to listen the
RTP stream using the engaged audio device (speakerphone, handset or headset), contact your
system administrator for more information.
Fixed volume to play RTP stream for specified paging group is configurable by your system
administrator.
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