No dial tone when calling internally via Microsoft Teams

[ethan105]

Hi all,

I have managed to integrate 3CX with Microsoft Teams today.
I can make and receive calls through Teams, which is great.
The only caveat I am facing is with the dial tone.
When I call an internal user, I don't get a dial tone on Teams, but the call connects and we can talk.
When I can an external user on Teams, I do get a dial tone.
Dial tone on the 3CX Android app and Desktop works for internal calls.

Anybody any idea why this might be happening ?

Regards

Ethan

 

[SweetAction]

Internal Teams to Teams calls should not pass through 3CX or be involved in 3CX at all.
Teams plays it own little thing when ringing another teams user -

 

[ethan105]

Sorry, I should have specified I'm calling an internal user with their 3CX extension e.g. 100 from the MS Teams app.
The call will connect but I don't hear a dial tone during the call.
I see on Teams that is Connecting and then says Calling, but there is no dial tone.