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Amauri_Crovador's avatar
Amauri_Crovador
Copper Contributor
Jan 24, 2024

Microsoft SBA can not connect with the MS teams client

I have a configuration involving multiple SBA's that was operational for a few weeks. However, I recently encountered an issue where calls to the SBA ceased functioning after disconnecting the intern...
microsoft teams
Microsoft Teams SBA
SBA
beyonduc's avatar
beyonduc
Copper Contributor
Feb 28, 2024

Hi ManojBaskaran27 

 

I'm encountering similar issues, but while my Teams soft clients are functioning as expected, the Teams phones are not. I've tested with Yealink MP54 and Cisco IP phones, but unfortunately, I haven't had any success. Both the phones and Teams clients operate perfectly when there is internet connectivity. However, when the internet connection is disrupted, the phones cease to function while the Teams clients continue to work in survivability mode.

 

I've confirmed that my SBA FQDN are correctly configured and same as the SBA policy, but it is in uppercase. This is evident as the Teams client on Windows PC operates smoothly, in contrast to the Teams phones. Do you have any suggestions for resolving this issue?

Regards,

Shalid

 

MarcoSol's avatar
MarcoSol
Copper Contributor
Aug 14, 2025

Hi beyonduc​, did you solve the issue with the IP phones and the SBA? I have a similar issue but is it´s strange because in this SBA release (more than one year later) the certified phones should work without problem.

I appreciate if you have any updates on your case.

Thank you.

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