Forum Discussion

pragashvg's avatar
pragashvg
Copper Contributor
Jul 25, 2023

SBC certificate is not issued correctly.

H All,   I am trying to establish a SIP TLS connection between MS Teams and Audiocodes hosted in GCP.   but I am getting below errors in Audio codes and the SIP TLS connection is not successful. ...
microsoft teams
pragashvg's avatar
pragashvg
Copper Contributor
Jul 26, 2023
My certificate meets all the requirements you have mentioned, not sure what causing this issue. I can see from Audiocodes side SIP trunk showing online. but it is not coming up on MS Teams side.
LeonPavesic's avatar
LeonPavesic
Silver Contributor
Jan 10, 2024

Hi pragashvg,

if your certificate meets all the requirements and the SIP trunk is showing online on the Audiocodes side, but not on the MS Teams side, it could be due to a network issue.

As JarrodLash  suggested, the firewall between the SBC and the internet might be manipulating the hostname to be the IP address. This could potentially cause issues with the SIP TLS connection.

You might want to check your firewall settings and ensure that it’s not interfering with the SIP TLS connection. If possible, try to turn off (bypass) the firewall temporarily to see if the connection is successful. If it is, then the issue is connected with the firewall settings.

If you’re still facing issues, it might be helpful to reach out to Microsoft Support or Audiocodes Support for further assistance.


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Leon Pavesic
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