telephone
cord to the
TEL LINE jack.
Route the cord through the
molded wiring channel.
What if Check TEL Line appears
on the base or handset display?
The telephone cord may not be
connected correctly. Check the
telephone cord connection.
Do you have DSL or any high-speed Internet service
delivered through your phone line?
Try putting a DSL filter between the base and the wall
jack. Without a filter, telephone-line-based Internet
services can interfere with standard phones.