Vtech VH621 User Manual - Page 25

Appendix Deregistering headsets You may need to deregister your headsets if you have two registered headsets in your VH6210/VH6211 system and need to replace one of them. You must first deregister both headsets, and then register each headset you wish to use again, one at a time. NOTES: • You cannot deregister the headset(s) if any system headset is in use. • To deregister all headsets from a VTech or AT&T DECT cordless telephone base, see the user's manual of your cordless telephone system. Deregister all headsets from your headset base 1. Press and hold the PAIR button on the headset base (at least 10 seconds) until the MUTE | SPARE BATT light on the headset base turns on and starts to flash in red, then release the PAIR button. 2. Immediately press and release the PAIR button again. You must press the PAIR button while the MUTE | SPARE BATT light is still flashing red (The light flashes for about seven seconds. If the light stops flashing, start again with Step 1). It takes about 10 seconds to complete the deregistration process. The LED light flashes slowly in red and blue when the deregistration process is successful. 3. To register the headset(s) to the headset base again, follow the registration instructions. Deregister all headsets from your Dongle 1. Press and hold the pair button on the Dongle for about 10 seconds until the Dongle LED light flashes red quickly, and then release the button. 2. Immediately press the pair button again. The Dongle LED light will turn steady green for 3 seconds, and then turn off. It takes about 10 seconds to complete the deregistration process. The headset light will turn steady red when the deregistration process is successful. 21