Advanced Phone Features
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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. 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.
The SIP-T21(P) E2 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 while there is
already an active call on the phone.