Forum Discussion
Incoming calls anonymous - Ressource account assigned to call group
Hello community, we are currently in the process of migrating Skype users on-premise to Teams including a Direct Routing Scenario. Part of our setup are call groups containing operators that can ...
The issue has been resolved together with Microsoft Premier Support.
The root cause was the source Caller ID not being in E.164 format. Our PSTN "Sipgate" does not send Caller ID's in this format, the country code e.g. +49 was always missing. Therefore we needed to configure our SBC to manipulate the number from e.g. "030123456" to "+4930123456".
Strange is that this was never an issue when directly calling a Teams user, only when a resource account was called and in turn a call group.