MS Teams orig/term carrier?

[Adam Thompson <athompson () merlin mb ca>]

Despite having worked for an ILEC in network ops for 10yrs, I can't figure out how to answer this without an SS7 
sniffer (which I obviously no longer have, nor access to an SSP or SCP).

What 3rd-party carrier(s), if any, does Microsoft use to originate & terminate MS Teams-to-PSTN voice calls in Canada?

Pointers to rabbit holes welcome, if you think there’s an actual answer at the end ;-).

Thanks,
-Adam

Adam Thompson
Consultant, Infrastructure Services
[[MERLIN LOGO]]<https://www.merlin.mb.ca/>
100 - 135 Innovation Drive
Winnipeg, MB, R3T 6A8
(204) 977-6824 or 1-800-430-6404 (MB only)
athompson () merlin mb ca<mailto:athompson () merlin mb ca>
www.merlin.mb.ca<http://www.merlin.mb.ca/>