Sure, there is, just do the following:
Use "show cdp neighbors" to look up the device names of the phones you want to correct (usually starts with SEP).
Next, associated a user-id with those phones.
Now log in to the ccmuser page (http://IPofyourCallManager/ccmuser) using that user-ID
Now simply switch the message waiting indicator
The MWI indicator should be on.
This method requires that you have MWI configured. There is only one but that you should be aware of, which is if the phone in question would have the message waiting indicator o because of an unread voicemail this message would turn it off.
Kind regards,
Leo
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