Forum Discussion
MS Teams Direct Routing - Internal call transfer failure
It's not that easy, you will need your SSL certificate and private key in order to decrypt the traffic, you need to google about that. But maybe you just disable REFER support like we did? That's much simpler and works much better and requires less rules on SBC to make calls work. Just strip 'REFER' from any 'Allow:' header coming from SBC on requests and responses.
It turned out, that there was in fact something wrong with how Microsoft / 3PIP SfB Phones sent the refer to our SBC. (Our SBC did not receive a refer-to number) Microsoft has now fixed the issue and we can correctly transfer calls to external numbers via the Teams Desktop Client and 3PIP Modes with users in TeamsOnly mode.
Hi mate,
Good to know it's all fixed! Yes, the biggest problem when dealing with Microsoft is that you never know if that's an issue with your phone or software or with their end. I was speaking to their official support as we are an official partner and all I got in the end was 'Please post into our techcommunity'.