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 22.214.171.124.
In Tellus WebApps we have update TellusAPI to be compatible with Tellus Voice 126.96.36.199. This means that Tellus WebApps 188.8.131.52 must be upgraded if Tellus Voice 184.108.40.206 is installed and vice versa.