Aastra Telecom 9143i Series User Manual

41-001160-03, Rev 00, Releaes 2.4 

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Configuring Operational Features

An Administrator or User can configure a specific key (softkey, programmable 
key, or expansion module key) on the phone that allows you to send/receive a 
Real Time Transport Protocol (RTP) stream to/from pre-configured multicast 
address(es) without involving SIP signaling. This is called Group Paging on the IP 
phones. You can specify up to 5 listening multicast addresses.

An Administrator can use the following parameters in the configuration files to set 
Group Paging RTP Settings:

An Administrator or User can use the following parameters in the Aastra Web UI 
to set Group Paging RTP Settings:

Paging Listen Addresses (Path: Basic Settings->Preferences->Group 
Paging RTP Settings)

<Paging> Key (Operation->Softkeys and XML, Programmable Keys, or 
Expansion Module Keys)

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The  "Allow Barge In" field is enabled by default. If an active line on the phone receives an incoming 
intercom call, the active call is put on hold and the phone automatically answers the incoming 
intercom call. To disable this field, uncheck the box.

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Click 

 to save your changes.

The Group Paging RTP Settings are dependant upon the setting for 

the “Allow Barge In” parameter.

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