We found an issue regarding changing status of voicemail message. This problem only occurred when a large number of messages is stored.
We have fixed this problem in Tellus Voice with version 184.108.40.206.
In Tellus WebApps we have update TellusAPI to be compatible with Tellus Voice 220.127.116.11. This means that Tellus WebApps 18.104.22.168 must be upgraded if Tellus Voice 22.214.171.124 is installed and vice versa.