Depending on the ATA you have there is a few things to consider:
1. On most Linksys Based adapters such as the PAP2 there is a Voice Mail Server field, fill this out weith xx.voxalot.com where xx is us, eu or au
2. To stop the stutter for this time around you'll have to find the MWI Subscribe setting and manually toggle it to No (It is found under the User tab on a PAP2). It is along with DND, Call Waiting and CWCID settings.
3. This maybe of interest regarding MWI refresh intervals
http://forum.voxalot.com/voxalot-sup...html#post11602
4. I have had to deal with this personally, and I have found that:
-Setting up as suggested in step 1
-Also when checking messages, rather than deleting new messages after hearing them, saving them to the Old Messages folder, then deleting them afterwards
seems to keep this issue from repeating....
Other related threads:
http://forum.voxalot.com/voxalot-sup...h-no-msgs.html
http://forum.voxalot.com/voxalot-sup...-interval.html