AT&T E5640, E5655, E5644B, E5643B To re-register a handset to a new telephone base, Enter Base ID

Re-registering a handset

To re-register a handset to a new telephone base

•Make sure the handset battery is properly installed and charged.

•Unplug the old telephone base. The handset will display SEARCHING....

•Install the new telephone base by plugging it into an electrical outlet and telephone jack.

•Press and hold the SELECT/MENU key until the handset displays

ENTER BASE ID.

•Enter the 15-digit base ID code located on the bottom of the E5640, E5643B and E5644B telephone base.To find the number on the E5655, go to the telephone base, press SELECT/MENU on the telephone base and scroll down to highlight DISPLAY BASE ID, then press SELECT/MENU.

•After entering the code, press SELECT/MENU to accept the code and complete registration.

NOTE: If an invalid base ID code is entered, you will hear an error tone and the handset will continue to display ENTER BASE ID. To make corrections while entering the code, erase digits by pressing the DELETE/MENU key.

Once a valid base ID code is entered and accepted by the telephone base, the new handset will be assigned the next available handset number (Handset 2, Handset 3, or Handset 4). A maximum of four handsets can be registered to each telephone base.

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