Vtech CL80100 User Manual - Page 15

Adding the handset to your telephone base Deregistering a handset You may need to deregister your handsets if: • You have 12 registered handsets and need to replace a handset. -OR• You wish to change the designated handset number of your registered handsets. You must first deregister ALL the handsets, and then register each handset you wish to use again, one at a time. Please read carefully through all the instructions on pages 11-12 before beginning the deregistration process. To deregister all handsets (for AT&T CL81100/CL81200/ CL81300/CL82100/CL82200/CL82250/CL82300/CL82350/ CL82400/CL82450/CL82500/CL82550/CL82600 model) 1. Press and hold /HANDSET LOCATOR on the telephone base for about 10 seconds (until the IN USE light starts to flash), then release the /HANDSET LOCATOR button. 2. Immediately press /HANDSET LOCATOR again while the IN USE light is still flashing. (The light flashes for about seven seconds. If the light stops flashing, pick up the handset and place it back into the telephone base, then start again with step one above.) 3. It takes up to 60 seconds to complete the deregistration process. Wait for the cordless handset screen to alternately display 1.Press HS LOC on base 4sec and 2.Then press # on handset. 4. To register the handset(s) to the telephone base again, follow the instructions on page 9. After you deregister the handset(s), the telephone base is in idle mode but the system date and time information needs to be reset. For instructions, see Set date/time in the telephone system user's manual for details. To skip setting the date and time, press OFF/CLEAR. 11