Advanced Phone Features
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3.
Press the Cancel soft key to cancel the multicast RTP session.
Note
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
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 takes 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 with the highest priority, 10 with the
lowest.
Disabled: The voice call in progress shall take precedence over all incoming paging
calls.
Paging Priority Active
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 for incoming RTP multicast in the Listening Address field.
Multicast RTP is one way only from sender to the multicast address(es) (receiver). For
outgoing RTP multicasts, all other existing calls on the phone will be placed on hold.
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