Uniden seems totlly unavailable to customers with problems! My extension cordless phones all started having their red light on their bases constantly blinking. I tried everything I found on their common questions site, plus searching google on line. Then I phoned uniden's customer service, where there is no one to talk to. After that, I went to uniden's website and sent an email describing my problem. No reply from them, so two more times I sent emails again. Still no reply. I am amazed that they seem inaccessible to my customer need for help. I will be unlikely to replace my phones with the uniden brand again!