Model EXA13981 retrieving messages from another phone

SOURCE: ge dect 6.0 phone, model no. 28112EE2-A

I had the same problem. You just need to call your phone service provider and they can deactivate this feature. This will allow all messages to go to your answering machine.

Thanks !

SOURCE: Fixing message isssue

You can also press #409 on the phone to clear the message waiting indicator.

SOURCE: ge model 28112 dect 6.0

If you restore Factory Defaults under "Mute" menu it will stop blinking.

SOURCE: How to retrieve messages from the answering machine ..remotely

Remotely Operating Your Answering Machine

Call your telephone number and wait for the answering machine to answer. If the answering machine is off, it will answer after about 10 rings and series of beeping sounds.
During the greeting message (or a series of beeps when the answering machine is off), press [0] and enter your PIN code within 2 seconds (see "Setting a Security Code or Personal Identification Number (PIN)" on page 54).
The answering machine announces the current time and the number of messages stored in memory. You hear "To play incoming messages, press zero-two. For help, press one-zero." You will hear a beep.
Enter a remote command within 15 seconds, each command there after must be entered within 2 seconds.