Yealink SIP-T21 E2, Руководство пользователя

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Advanced Phone Features
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Intercom is a useful feature in an office environment to quickly connect with the operator
or the secretary. You can press the intercom key to automatically connect with a
preconfigured target extension for outgoing intercom calls, and the target extension will
automatically answer incoming intercom calls by default.
Note
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. Enter the target extension number in the Value field.
6. 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 is not available on all servers. Contact your system administrator for more
information.