User Guide for the SIP-T54S Media IP Phone 
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Configuring the Intercom Feature on the IP Phone 
Configuring an Intercom Key 
To configure an intercom key via phone user interface: 
1.  Press Menu->Features->DSS Keys. 
2.  Select the desired DSS key. 
3.  Press          or        , or the Switch soft key to select Intercom from the Type field. 
4.  Select the desired line from the Account ID field. 
5.  (Optional.) Enter the string that will appear on the LCD screen in the Label field. 
6.  Enter the target extension number in the Value field. 
7.  (Optional.) Enter the directed call pickup code in the Extension field. 
If it is configured, when the target extension receives an incoming call, the supervisor can 
press the intercom key to pick up the call directly. Contact your system administrator for 
more information. 
 
8.  Press the Save soft key to accept the change or the Back soft key to cancel. 
Intercom key is configurable via web user interface at the path Dsskey->Line Key. 
Incoming Intercom Calls 
The SIP-T54S media IP phone supports automatically to answer an incoming intercom call by 
default. The phone automatically plays a warning tone when it receives an incoming intercom 
call. In addition, you can enable the phone to mute the microphone when it automatically 
answers an incoming intercom call. You can also enable the phone to automatically answer an 
incoming intercom call while there is already an active call on the phone. The active call is then 
placed on hold. 
Intercom features you need to know: 
Enable or disable the IP phone to automatically answer an incoming 
intercom call.