1.
2.
3.
4.
1.
2.
3.
4.
1.
2.
3.
1.
2.
3.
4.
5.
You can use multicast paging to quickly and easily forward out time sensitive announcements to people within the multicast group. You can configure a
multicast paging key or a paging list key on the phone, which allows you to send a Real Time Transport Protocol (RTP) stream to the pre-configured
multicast address(es) without involving SIP signaling. You can configure the phone to receive an RTP stream from pre-configured multicast listening
address(es) without involving SIP signaling. You can specify up to 10 multicast listening addresses.
Sending RTP Stream
To configure a multicast paging key via Phone interface
Press Menu Features line or Line Key Line Key2(e.g.)
Press
and
or Switch key to select the Multicast Paging in the Type field.
Enter the multicast IP address and port number (e.g., 224.5.6.20:2000) in the Value field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
Press
or Save soft key to save the configuration
To configure a multicast paging key via Web interface
Function keysLine key:
Select the desired Key and select Multicast Paging in the Type.
Enter the multicast IP address and port number (e.g., 224.5.6.20:2000) in the Value field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
Click the
button to save the configuration.
Sending RTP Stream:
Press the multicast paging key when the phone is idle.
The phone sends RTP to a preconfigured multicast address (IP: Port). Any phone in the local network then listens to the RTP on the preconfigured
multicast address (IP:Port). For both sending and receiving of the multicast RTP, there is no SIP signaling involved.
The multicast paging key LED illuminates solid green.
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 with the highest priority, 10 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.
Multicast Codec:
You can only configure the codec by Web interface.
To configure multicast codec key via Web interface
Click Directory Multicast Paging:
Select the desired codec from the pull-down list of Multicast Codec
Click the
button to save the configuration.
To configure multicast listening addresses via Web interface:
Click DirectoryMulticast Paging
Select the desired value from the pull-down list of Paging Barge.
Select the desired value from the pull-down list of Paging Priority Active.
Enter the multicast IP address(es) and port number (e.g., 224.5.6.20:2000) which the phone listens to for incoming RTP multicast in the Listening
Address field.
Enter the label in the Label field.
69
Multicast Paging
