Panasonic kx-tg1100 I have a spare panasonic kx-tg1103 phone and a new kx-tg1100 phone. How can I make the kx-tg1103 work off the kx-tg1100. Thanks.

STEP1:
On the handset you want to discard go to "SETTINGS HS" -> "REGISTRATION" -> "CANCEL BS"
This will discard the registration of the handset to any base.

STEP2:
Using the handset you want to register go to "SETTINGS HS" -> "REGISTRATION" -> "REGISTER HS"and select the base you want (i.e. BASE 1, BASE 2, ..., BASE n).

NOTE:If you do not get access to the BASE you are looking for (STEP 2) then you have to cancel the registration of the new handset to any base. Therefore, follow STEP1 for this handset as well and then follow STEP 2.

After you finish all the above, hold down the "PAGE" button for about 5 secs.

You are now done!!!

Good luck
Simos