Installation and Maintenance Manual 13. Known Issues
Version 1.0.21 97 Microsoft Teams
13 Known Issues
When the Teams SBA IP address is changed and the SIP listen IP address is
updated, the MSFT service needs to be restarted.
By design, AAD Long lived token is validated by the Proxy server. Currently the token
is valid for 24 hours – when the internet connection is lost for more than 24 hours,
PSTN calling capabilities are also lost.
Calls between Teams clients are not supported in this version (only calls between
Teams Clients and PSTN are currently supported).
When recovering from USB and the goRecover command fails, try to run goRecover
again without rebooting.
To view a list of updated known issues published by Microsoft:
https://docs.microsoft.com/en-us/microsoftteams/direct-routing-survivable-branch-
appliance#known-issues