Teams conference room phones can't dial out

Frequent Contributor



Please i need your help on this issue.


Microsoft Teams conference room accounts for 3 conference rooms can't dial out.


Getting error: "Sorry but your call cannot be completed."


Does anyone know how to resolve this problem. 


@Eric Marsi 



@Christopher Hoard

@Allen Xu_MSFT


@Steven Collier


@paul keijzers

@Bryan Nyce

@adam deltinger 

@Chris Webb


@Graham Walsh


Zhengqi Lou-MSFT

Vasil Michev

Nate Loback

Yuki Sun-MSFT

@Juan Carlos González Martín

@Satyendra Sharma

1 Reply
best response confirmed by Ini (Frequent Contributor)
Check so that all configuration is correct, do you use Direct Routing, Calling Plans or Operator Connect?
As an admin open this site:

The you will get some help to diagnose Direct Routing. In the same help you could also try with "Diag: Unable to make domestic PSTN calls in Teams"