Yealink SIP-T54S Administrator's Manual page 546

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Details of Configuration Parameters:
features.call_park.park_mode
Description:
Configures the call park mode.
1-FAC
2-Transfer
Web User Interface:
Features->Call Pickup->Call Park Mode
Phone User Interface:
None
features.call_park.enable
Description:
Enables or disables the IP phone to display the Park soft key during a call.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), the Retrieve soft key will also be displayed on the dialing screen.
Web User Interface:
Features->Call Pickup->Call Park
Phone User Interface:
None
features.call_park.park_code
Description:
Configures the call park code for the Park soft key.
This call park code will also apply to the call park key.
Example:
features.call_park.park_code = *68
Web User Interface:
Features->Call Pickup->Call Park Code
Phone User Interface:
None
520
Parameters Permitted Values
1 or 2
0 or 1
String within 32 characters
Default
2
0
Blank