GE model 25922 cordless phone

That blinking indicates a message in a third party voicemail (voicemail provided to you from your phone company), contact them as they may be charging you for a service you do not use.

If you need the manual here it is
http://assets.twacomm.com/assets/pdf/34197.pdf

The below is pasted from your manual

Charge/in use indicator on the base flashes
• Provided your phone company offers voice messaging service and you subscribe
to it, the charge/in use indicator on the base flashes when the phone is not in use
to indicate there is a message waiting. It stops flashing after the message has
been reviewed.




Hope this helps
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