How to Make BLF Work with Prefix to Intercom
Last modified date: 2016/11/29 views: 2035

We can use line keys in combination to implement different features, especially using in boss- secretary scenarios. For example, we can combine BLF and prefix which has intercom code configured. When a boss finds that his secretary’s line is idle, he just press the prefix and BLF to intercom to his secretary.


1. Login in the DSSKey page of the web UI.

2. Configure BLF to monitor the extension you want to monitor. Select key type as BLF and input the extension number in the Value field. Choose the corresponding account.

3. Configure Prefix and input the intercom feature code.

Note , Intercom is not available on all servers. Contact your system administrator to check if the server supports it or not. If yes, asking for feature code.


4. When line 132 is idle, press line key3 and line key1, user can intercom to Ext.132.

Product Type
SIP-T48G , SIP-T46G , SIP-T42G , SIP-T41P , SIP-T29G , SIP-T28P , SIP-T26P , SIP-T27P , SIP-T23G , SIP-T23P , SIP-T21P , SIP-T20P , SIP-T22P
IP phones running V71 or later
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