Yealink SIP-T27G User Manual page 192

https://arttel.ru/
User Guide for the SIP-T27G IP Phone
182
https://arttel.ru/shop/ip-telefony/yealink-sip-t27g
To configure the shared line settings and the number of line key on phone A via web user
interface:
Register the primary account 4603.
1.
Click on Advanced, and then select Shared Call Appearance from the pull-down list of
2.
Shared Line.
Enter the desired number in the Number of line key field.
3.
This field appears only if Auto Linekeys is enabled.