Newbie needs help, invalid ext number

[jasherk]

Somehow I've been blessed with being the TelCom dude. It would appear that some how in the last couple of weeks, the system has been messing up.
Scenerio
We get a call to our 800 line. The caller enters the extention of the person they wish to speak to. If the extention is in use, then the caller receives an invalid extention number has been entered message.

I'm not sure what all will help but, here's the info I can provide:
Meridian Nortel
Nortel Norstar Voice Mail 3.0

 

[johnpoole]

you might want to post this on a forum for norstar key systems, most of the pbx users don't know much about systems with less the a few hundered phones, my 81 is blessed with 8000 users, the commands for a key system are all different then for the larger stuff

john poole
bellsouth business
columbia,sc