My 'slave' BT6600 TWIN screen displays OK but there is no sound at all. It doesn't beep when placed in the charger. I cannot call out on it or pick up incoming calls because there is no sound. It is not muted. Volume is set to max. Battery shows charged. I have tried unplugging the base station for 20 -30 seconds as recommended on another post, but this did not work. Grateful for any suggestions.
If your phone is within warranty call the helpdesk By phone: 0800 145 6789 , Monday to Friday 9.00am to 5.30pm, Saturday 9am to 2pm. However before you do, try adjusting the ringing to check the sound works and resetting the Handset via the handset menu and confirm you get dial tone on both handsets.
Thanks very much for your suggestions and the phone number. From the ringing adjustment, sound is not working. Resetting hasn't worked either. The charger works OK with the Master Handset, so it looks like a replacement is needed. Thanks again.