Hi! We are developing a 3-rd party application that involves VoIP Calling, and we want to integrate with Teams.With MS Graph API, we were able to query for Teams users and display them in UI.What we want is to provide the ability to transfer the ongoing call, from outside Teams boundaries, to selected Teams user. Could you please help us find answers to the following questions:What are the "per tenant" requirements to enable calls transferring from outside Teams boundaries to Teams Client / Teams user?Does each tenant have their own SIP Trunk number or it has to be configured by tenant administrator?If there is no SIP Trunk to place calls, what methods MS Teams provide to perform voice & calls interactions from outside Teams boundaries? Thanks in advance!

Please have a look at this doc- https://docs.microsoft.com/en-us/microsoftteams/pstn-connectivityLet us know if you have any query. Thanks, Hunaid Hanfee --------------------------------------------------------------------- If the response is helpful, please click "**Mark as Best Response**" and like it. You can share your feedback via Microsoft Teams Developer Feedback link. Click here to escalate.

vtyagunov

Copper Contributor

Oct 19, 2021

Solved

Transferring calls to MS Teams client

Hi!

We are developing a 3-rd party application that involves VoIP Calling, and we want to integrate with Teams.

With MS Graph API, we were able to query for Teams users and display them in UI.

What we want is to provide the ability to transfer the ongoing call, from outside Teams boundaries, to selected Teams user.

Could you please help us find answers to the following questions:

What are the "per tenant" requirements to enable calls transferring from outside Teams boundaries to Teams Client / Teams user?
Does each tenant have their own SIP Trunk number or it has to be configured by tenant administrator?
If there is no SIP Trunk to place calls, what methods MS Teams provide to perform voice & calls interactions from outside Teams boundaries?

Thanks in advance!

Calling

Direct Routing

microsoft teams

HunaidHanfee-MSFT
Oct 26, 2021
Please have a look at this doc- https://docs.microsoft.com/en-us/microsoftteams/pstn-connectivity
Let us know if you have any query.

Thanks,

Hunaid Hanfee

---------------------------------------------------------------------

If the response is helpful, please click "**Mark as Best Response**" and like it. You can share your feedback via Microsoft Teams Developer Feedback link. Click here to escalate.

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Transferring calls to MS Teams client

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