Configuring Advanced Features
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To configure a multicast paging key via phone user interface:
1. Tap Settings->Features->DSS Keys.
2. Tap the desired DSS key.
3. Tap the Type field.
4. Tap Key Event in the pop-up dialog box.
5. Tap the Key Type field.
6. Tap Multicast Paging in the pop-up dialog box.
7. (Optional.) Enter the string that will appear on the touch screen in the Label field.
8. Enter the multicast IP address and port number in the Value field.
9. Enter the desired channel in the Channel field.
10. Tap to accept the change.
To configure a paging list key via phone user interface:
1. Tap Settings->Features->DSS Keys.
2. Tap the desired DSS key.
3. Tap the Type field.
4. Tap Key Event in the pop-up dialog box.
5. Tap the Key Type field.
6. Tap Paging List in the pop-up dialog box.
7. (Optional.) Enter the string that will appear on the touch screen in the Label field.
8. Tap to accept the change.
Receiving RTP Stream
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
value of the parameter is configured as disabled, all incoming multicast paging calls will be
automatically ignored. If the value of the parameter is the priority value, the incoming multicast
paging calls with higher or equal 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 value of the parameter is configured as
disabled, the IP phone will automatically ignore all incoming multicast paging calls. If the value