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Advanced Phone Features
169
4. Press the
OK
soft key to accept the change.
If you want to delete all paging groups, you can press the
Delete All
soft key.
Paging list is configurable via web user interface at the path
Directory
->
Multicast IP
.
Receiving RTP Stream
You can configure the phone to receive a Real Time Transport Protocol (RTP) stream from the
pre-configured multicast address(es) without involving SIP signaling. You can specify up to 10
multicast addresses that the phone listens to on the network.
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 10
: Define the priority of the active call, 1 is with the highest priority, while 10 is 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.
Enter the label in the
Label
field.