Yealink SIP-T4X Administration Manual page 136

3. Enter the specified DTMF digits in the Tran Send DTMF field.
4. Click Confirm to accept the change.
Intercom allows establishing an audio conversation directly. The IP phone can answer
intercom calls automatically. This feature depends on support from a SIP server.
Intercom is a useful feature in office environments to quickly connect with an operator or
secretary. Users can press an intercom key to automatically initiate an outgoing
intercom call with a remote extension.
Procedure
Intercom key can be configured using the configuration files or locally.
Configuration File
Local
<y0000000000xx>.cfg
Web User Interface
Configuring Basic Features
Assign an intercom key.
For more information, refer to
Intercom Key on page 390.
Assign an intercom key.
Navigate to:
http://<phoneIPAddress>/servlet
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