Yealink SIP-T40P User Manual page 137

(Enter the primary account 4603 in the Re gister Name field.)
2. Click on A dv anced, and then select Shared Call Appearance from the pull-down
list of Shared Line.
3. Enter the desired number in the Number of line key field.
This field appears only if A uto Linekeys is enabled.
Advanced Phone Features
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