You can set whether to automatically select the fax line instead of using the line registered to the recipient when sending a fax to the destination obtained from the remote address book.
1.
Press 
→ [Set Destination] → [Acquire Remote Address Book] → [Fax TX Line Auto Select Adjustment].
→ [Set Destination] → [Acquire Remote Address Book] → [Fax TX Line Auto Select Adjustment].2.
Select [On] or [Off] → press [OK].
[On]: You can automatically select adjustment for Fax TX Line.
[Off]: You cannot automatically select adjustment for Fax TX Line.