Yealink W60P Administrator's Manual page 179

Parameters
The default outgoing line for handset 1 is 1.
The default outgoing line for handset 2 is 2.
The default outgoing line for handset 3 is 3.
The default outgoing line for handset 4 is 4.
The default outgoing line for handset 5 is 5.
The default outgoing line for handset 6 is 6.
The default outgoing line for handset 7 is 7.
The default outgoing line for handset 8 is 8.
Note: It works only if the line you want to select to be default outgoing line should be
configured as outgoing line for handset X in advance.
Web User Interface:
Account->Number Assignment->Outgoing lines->Default
Handset User Interface:
OK->Settings->Telephony->Default Line
To assign the incoming line of the handset via web user interface:
Click on Account->Number Assignment.
1.
Permitted Values
Configuring Basic Features
Default
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