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Cannot sign in to a desk phone using Teams SIP Gateway
Hi all, I'm attempting to sign in to a Polycom CCX VVX 411 desk phone I have onboarded to the Teams SIP Gateway by following the instructions https://docs.microsoft.com/en-us/microsoftteams/sip-g...
- I finally got connected with a helpful Microsoft 365 support rep and it turns out the problem was that the "SIP devices can be used for calls" setting was not enabled on the Calling policy assigned to the user.
My fault, to be sure; that being said, it would be helpful if there were some kind of error message during the web sign in process if the setting is disabled rather than being told "You have successfully signed in". May my misfortune serve as a warning to others.
Good Catch Essam.
I'm able to sign in now too and my issue was due to Intune & MFA Authentication blocker. As soon as bypassing them and it is working fine again.
I'm able to sign in now too and my issue was due to Intune & MFA Authentication blocker. As soon as bypassing them and it is working fine again.
Andy_Chau Having MFA authentication enabled won't prevent a user from signing in to the Teams SIP Gateway. However, if you have a Conditional Access policy configured that restricts the locations a user can sign in from, you do need to make sure the SIP Gateway IP addresses are allowed, as documented https://docs.microsoft.com/en-us/microsoftteams/sip-gateway-configure#configure-conditional-access.