How do i register a at&t cordless phone model SL80108

SOURCE: New Expansion Handset refuses to register with the base

On the handset, you need to go into the menu, choose register, press and hold the intercom button on the handset and the page button on the base unit at the same time until it tells you that it is registered.

SOURCE: whont work, please register in displayed on screen

To solve the register problem.... Put each phone for 20 seconds or so in the main base. I had the same issue, and resolved it this way.

SOURCE: Register 2nd phone

Place handset on main base station for 20 seconds.

Joe Negus

• 652 Answers
• Posted on Apr 14, 2009

SOURCE: I cannont register a ATT 2042 cordless phone to

Are you sure it's a 2042...I found 2402 manual http://www.retrevo.com/samples/AT%26T-Telephone-manuals.html

george peters

• 860 Answers
• Posted on Dec 21, 2009

SOURCE: my cordless phone says

With the phone in standby, press MENU/SELECT on the base.
Move the cursor to select the Register Handset menu, and then press MENU/SELECT. Handset Registering will appear.
On the handset, press and hold # until the handset beeps and displays Handset Registering.
When the handset has registered to the base, the LCD will display Registration Complete then show the handset ID number.
If the display shows Registration failed, repeat the process again.
Note: If a handset has ever been registered to a base, reset the handset before you register it to a new base