To start, apologies if this is not the correct subreddit for this post - please redirect me if I'm wrong to post here.
I've been hired as an independent contractor for a small business who's requested to use MS Teams as their phone system. I've done a lot of reading and watching YouTube to get their system configured. They're using Microsoft's PSTN (numbers hosted in Teams) and based out of the US.
I'm typing this all from memory, but the setup includes:
Teams Enterprise Licensing, Teams Phone Standard, Teams Resource Account, Teams PaYG
Users have Teams Enterprise and Teams Phone Standard applied. Resource account has Teams Resource Account license and Teams PaYG license.
Teams Voice Configuration:
Resource account created with an auto attendant setup. Main number (voice app/service number) is applied to the auto attendant and routing to Teams users. Inbound calling works as expected. Shared Calling Policy configured with Emergency call back number and applied to users. Voice Routing policy uses no PSTN (Microsoft call routing only) and applied to users. Emergency routing policy applied to users. Emergency location configured for both main number and emergency call back number. Dial plan configured for 11-digit and 10-digit numbers and applied to users. Users are Enterprise voice enabled and can see the shared calling policy applied to their accounts. Calling policy is Global which should allow calling and default PSTN. A caller ID policy configured and applied to users. This is it from what I remember (at primary job now), but from my research, shared calling seemed pretty straight forward to setup.
The issue:
When we make outbound calls, the calls are dropped immediately. When checking call history/reporting for a user, I can see the call list which I believe means the call made it to Microsoft PSTN. There's no error or issue reported in these individual call reports - all stating success. But the call is dropped at first ring, so the "success" is misleading.
What am I missing here? This setup seemed so easy to configure, and I can't even get outbound calling to succeed. Your help is much appreciated - thank you!
EDIT #1: Could our issue be the "Phone consumption service" switch within the PaYG license properties? Whenever we try to turn this from Off to On, it fails to stay enabled. Or am I chasing a red herring?