The flashing red light is on a Uniden phone and it also flashes on the two other connecting phones.

SOURCE: My phone will not show it charging and will not turn on, red light flashing

dear
you have mentioned that ur phone is charging and not getting on. that means ON\OFF path is having problem .due to dry solder of ON\OFF switch its happening. please resolder it and then check it

SOURCE: My phone will not show it charging and will not turn on, red light flashing

Mine started acting wierd and it was flashing on and off. someone told me to press:*and # together with the power button.

SOURCE: The flashing light on phone

Press down the "find handset" button until the paging beep stops (about 5 seconds) and this will reset the indicator lights on the handsets.

SOURCE: uniden 5.8Ghz phone.

You need to reset the main base unit. Unplug the power from the back of the base. While the power is disconnected, press and hold the delete key while reconnecting the power. Wait for a long beep tone. When the display shows 88 or P, press play button one time. If you have a phone without an answering machine, disconnect the power from the back of the base, press and hold find hs button while reconnecting power.

SOURCE: the visual ringer keeps flashing on my uniden cordless phone

I CALLED UNIDEN WITH THE SAME PROBLEM.

THE VISUAL RINGER IS FLASHING WHEN YOU HAVE OLD EMAILS. YOU HAVE TO DELETE THE OLD EMAILS