Yealink SIP-T2 SERIES Administrator's Manual page 585

Parameters
For ext keys:
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to 40 (Ext key 21 cannot be
configured).
Note: It is not applicable to SIP-T19(P) E2 and CP860 IP phones.
Web User Interface:
DSSKey->Line Key->Label
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Label
To configure an ACD key via web user interface:
1. Click on DSSKey->Line Key.
2. In the desired DSS key field, select ACD from the pull-down list of Type.
3. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
4. Click Confirm to accept the change.
To configure the ACD auto available timer feature via web user interface:
1. Click on Features->ACD.
2. Select the desired value from the pull-down list of ACD Auto Available.
3. Enter the desired timer in the ACD Auto Available Timer(0~120s) field.
4. Click Confirm to accept the change.
Configuring Advanced Features
Permitted
Values
Default
563