Try this.
What to check On the Voice Mail Pro Server Top ten list
Set the Lan Adapter to 100 Half Duplex Prevents Auto-negation
Turn Off Screen saver OpenGl takes system resources
Turn PC Power Management (Monitor, hard drive, standby, hibernate) Turned off power management
Check for other applications running on VM server NetDect,Virus Protection
Task Manager, check CPU usage (<100) 2 to 4%
Uncheck Allow PC to turn off power to Lan Card to save power Found on Lan adapter tab
Uncheck Windows Automatic Updates System Admin can check Manually
VM Pro installed as a service versus a program Restarts VM Pro in case of Power Reset
Pentium 200 with 128 MB Ram VM Pro Only
Pentium 300 with 256 Mb Ram VM Pro using Campaigns/IMS
What to check On Manager when running Voice Mail Top ten list
License Server set to specific Address Versus 255.255.255.255 Prevents Broadcast
Voice Mail Server set to Specific Address versus 255.255.255.255 Prevents Broadcast
License Server set blank on remote nodes
User and Hunt Group names should be short with no punctuation Prevents application errors
The full name in User form should not have punctuation except for a space between first and last name. This only shows on sets display
If Voice mail is set to forward under user tab make sure that voicemail to email is set up properly. If not set properly you will not get an email or a voice mail.
If you want the message light to light for a hunt group put H and the hunt groups name in the source number tab of the user form (i.e. HMain)
For Callback (Outcalling) to an outside telephone number…if you are using 9 to dial out, make sure to put the 9 before the telephone number. (i.e. P99043333333) this goes in the source number tab for the user who wants their mailbox to outcall.
If you are using analog trunks and the voice mail is having volume issues you can go to the analog tab of the trunk form and change the voicemail volume to high.
To make sure that time is consistent with manager and voicemail when related to time stamping, you can specify a specific time sever for accuracy.
XP Pro edition – Disable Internet Firewall Option Could cause un-explained vmpro service outages.