Yealink SIP-T27P User Manual page 170

User Guide for the SIP-T27P IP Phone
How the phone handles incoming multicast paging calls depends on Paging Barge, Ignore DND
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. 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.

Ignore DND
The ignore DND parameter defines the lowest priority of multicast listening address from which
the phone can receive an RTP stream when DND is activated. If a priority is selected from the
pull-down list of Ignore DND, the phone will ignore incoming multicast paging calls with lower
priorities when DND is activated in phone mode. Valid values in the Ignore DND field:
1 to 31: Define the lowest priority of the multicast listening address from which the phone

can receive an RTP stream, 1 with the highest priority, 31 with the lowest.
Disabled: All the incoming multicast paging calls will be ignored when DND is activated in

phone mode.
The phone will automatically answer all incoming multicast paging calls when DND is activated
in custom mode.
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:
Click on Directory->Multicast IP.
1.
Select the desired value from the pull-down list of Paging Barge.
2.
Select the desired value from the pull-down list of Ignore DND.
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
5.
listens to for incoming RTP multicast in the Listening Address field.
(Optional.) Enter the label in the Label field.
6.
Label will appear on the LCD screen when receiving the multicast RTP stream.
Select the desired channel to listen from the pull-down list of Channel.
7.
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