Reset password and when it ask's RESET PASSWORD? say NO! then do again but say YES!.
or
Change the digital ports the vmail is using and reboot.
or
Try to upgrade it to a newer release of software.
or
If its a 4 port then then pull out the 4port expansion cartridge , power up, power down then re-install cartridge and power up.
or
Unscrew from wall and walk over to garbage can and insert flash into can, go to nearest bar and have a nice Crown Royal over ice and think about calm things like.....drinking!