Administrator’s Guide for SIP-T2xP and SIP-T19P IP Phones
166
To configure a multicast paging key via phone user interface:
1. Press Menu->Features->DSS Keys->Memory Keys (or Line Keys).
2. Select the desired DSS key.
3. Press or , or the Switch soft key to select Key Event from the Type field.
4. Press or , or the Switch soft key to select Multicast Paging from the Key
Type field.
5. Enter the multicast IP address and port number in the Value field.
6. Press the Save soft key to accept the change.
IP phones can receive an RTP stream from the pre-configured multicast address(es)
without involving SIP signaling, and can handle the incoming multicast paging calls
differently depending on the configurations of Paging Barge and Paging Priority Active.
Paging Barge
This parameter defines the priority of the voice call in progress, and decides how the IP
phone handles the incoming multicast paging calls when there is already a voice call in
progress. If the parameter is configured as disabled, all incoming multicast paging calls
will be automatically ignored. If the parameter is the priority value, the incoming
multicast paging calls with higher priority are automatically answered and the ones
with lower priority are ignored.
Paging Priority Active
This parameter decides how the IP phone handles the incoming multicast paging calls
when there is already a multicast paging call in progress. If the parameter is configured
as disabled, the IP phone will automatically ignore all incoming multicast paging calls. If
the parameter is configured as enabled, an incoming multicast paging call with higher
priority is automatically answered, and the one with lower priority is ignored.
Procedure
Configuration changes can be performed using the configuration files or locally.
Configure the listening multicast
address.
Configure Paging Barge and
Paging Priority Active features.
For more information, refer to
Receiving RTP Stream on page
366.
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