When I call one of my extensions on my PBX from an external number and leave a voicemail via Exchange UM, the email I get always shows it is from the extension associated with the IP Gateway which is 370. So the subject line always looks like this:
Voice Mail from 370
If the caller is internal, it shows up as the correct extension and if that extension is associated with a user in Exchange, it shows the name of the person it is associated to. So the subject line looks like this:
Voice Mail from Tim Broadaway
Anyone have any ideas on why my external callers are not getting their number passed to the Exchange server?
I'm running Exchange 2010 SP1 with the rollup 1 package installed. I am using an Audiocodes MP-114 FXO box for my IP Gateway. My PBX is a NEC DS2000.