Yealink SIP-T22 - Manual (Page 60)

User Guide SIP-T22P/SIP-T22 IP Phone
48
2. Select Enabled from the pull-down list of Dual-Headset.
3. Click Confirm to accept the change.
Note
Two types of DSS keys: Line Keys and Programmable Keys. The details will be introduced
in the following. The SIP-T22P/SIP-T22 IP phone supports 3 line keys.
You can assign predefined functionalities to the line keys to have quick access to
features such as call return and voice mail. The line key LEDs will indicate status when
the keys are assigned with particular features, such as BLF. The default key type of each
line key is Line.
To configure the line key via phone user interface:
1. Press Menu->Features->DSS Keys.
2. Select the desired line key, and then press the Enter soft key.
3. Select the desired key type from the Type field.
4. (Optional.) Select the desired key event from the Key Type field.
5. (Optional.) Select the desired account from the Account ID field.
Dual headset is configurable via web user interface only.