Yealink SIP-T2 SERIES Administrator's Manual page 218

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Details of Configuration Parameters:
Parameters
auto_dst.url
Description:
Configures the access URL of the AutoDST file (AutoDST.xml).
Example:
auto_dst.url = tftp://192.168.1.100/AutoDST.xml
During the auto provisioning process, the IP phone connects to the provisioning
server ―192.168.1.100‖, and downloads the AutoDST file ―AutoDST.xml‖. After
update, you will find a new time zone ―Paradise‖ and updated DST of ―Pakistan
(Islamabad)‖ and ―India (Calcutta)" via web user interface: Settings->Time &
Date->Time Zone.
Note: It works only if the value of the parameter "local_time.summer_time" is set to 2
(Automatic).
Web User Interface:
None
Phone User Interface:
None
IP phones support multiple languages. Languages used on the phone user interface
and web user interface can be specified respectively as required.
The following table lists languages supported by the phone user interface and the web
user interface.
196
URL within 511 characters
Phone/Web User Interface
English
Chinese Simplified
Chinese Traditional
French
German
Italian
Polish
Portuguese
Spanish
Permitted Values Default
Blank