M9216 turn on message waiting flash - Aastra Telecom Aastra M9216 Telephone A0402093 Grey

https://www3.bellmts.ca/mts/support/phone+services/troubleshooting/you+have+no+new+messages+waiting+but+your+phone+says+you+do

Turn off Message Waiting Notification temporarily

1. If you know you have a message waiting, but do not wish to retrieve it immediately, you can turn off Message Waiting Indicators.
2. Press *93 to turn off the flashing light and stuttered dial tone until another message is received in your mailbox.

There is a call back feature in the system. Sometimes when you receive an internal call from another extension and you are on another call the caller will hit callback. You actually have to return the call to that extension to stop the light from flashing.

Fairly easy to find under Aastra http://www.florenceinc.com/en/docs/en/M9216-e.pdf

Carl

That is the message waiting indicator, it is telling you that your Call Notes (Or whatever your service provider calls it's voicemail) has a message waiting. If you do not have a message waiting, you can turn the light of by following these steps:

Resetting the voice message waiting indicator
When you receive a new voice mail message, the new message LED on the top of the handset flashes and
appears in the handset display. In the event your message waiting light gets out of sync with your phone company’s
voice messaging system, you can manually reset it back to the “No messages waiting” state.
Press and hold FIND on the base for five seconds.
Note: The handsets connected to the base will start to beep, however, keep pressing for five seconds.
A beep sounds and the message alert tone is reset.

The message waiting light was probably turned on by a co-worker by mistake. That type of telephone set was used on 124i systems among others. If thats the case, to turn off the message waiting lamp press your call1 button followed by 873, press the spk key to hang up. Hopefully that takes care of the problem.

Did the messge waiting light work before?
Does the light flash when there is an incoming call?

try this... FEATURE # 8 0 6
this is a code to shut off the Static Time and Date feature on the set. Usually if this feature is turned on, the set does not flash where there is a message.

Well that is one thing, or the port maybe bad, and a technician maybe required to move that phone to a new port on the phone system.

This feature is country dependent and may not
appear in some countries.
If you have subscribed to the voicemail service
from your local service provider, icon turns
on when you have a new message in your
mailbox. After you have accessed to all the new
messages, icon will turn off automatically. If
you find that the message waiting indication
cannot be turned off by the network, you can
still turn off the message waiting indication with
your phone by the following step :

In idle mode, if voice mail waiting icon is on,
long press the redial key to turn off the voice mail waiting
icon.
Once you choose to delete the message waiting
indication, all the other handsets registered to
the same base station will turn off the message
waiting indication accordingly.

turn it off and take out the battery?
But it could be a software problem?

Slide the Nortel Grey Bar above the Hold & Rls buttons to reveal the setup button.

1. Hit that button to show *Options List / # Setup list
2. Press * to go into options.
3. Use the arrow buttons or hit 3 to go into CLEAR MESSAGE WAITING
4. Then hit 3 again to clear the message waiting

This should resolve the blinking light.

The term we used for this back when I worked for the phone company was a "stuck message waiting indicator" and the way to fix it was:

Call yourself and leave a message.
Hang up and wait 2 minutes (we used to say 5 minutes, but 2 is plenty)
Retreive/delete your voice mail message
Hang up and wait 2 minutes


That should clear the blinking light.