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HowardZhou's avatar
HowardZhou
Copper Contributor
Nov 25, 2019
Solved

What phone number or SIP URI could be assigned to Teams users/desk phones?

Hello all,

 

Just try to set up the 1st MS Teams desk phone(Yealink) in our environment.     

 

We have O365 E3 + Phone system license.  No phone number port over.   Deployment model: Direct Routing.  My understanding is Microsoft won't assign any "Microsoft" phone number to the user/phone.

 

Questions :

. What "phone number" or SIP URI could be assigned to Teams user/ Teams desk phone? 

. When outside caller try to make a call to this Teams phone through analog phone,  how this caller could dial?   

 

Any information or help will be appreciated. 

 

Best regards,

 

HZ

microsoft teams
  • LinusCansby's avatar
    LinusCansby
    Nov 27, 2019

    HowardZhou The DID that you get from your local Telco service provider is the Direct Routing numbers that you can assign to an user.

8 Replies

  • LinusCansby's avatar
    LinusCansby
    MVP
    Nov 26, 2019

    Hi,

     

    You can assign a number from Direct Routing or Calling Plans, but since you have Direct Routing you should take a direct routing number and assign to the user account.

     

    The number is not assigned to the deskphone, it is assigned to the user account that signs in to the phone.

     

    When a outside caller makes a call to the user that is signed in to the deskphone the call will go from PSTN to Direct Routing SBC (your own or hosted) to Microsoft and then to the Teams user (signed in to Teams client in computer or/and deskphone).

    • HowardZhou's avatar
      HowardZhou
      Copper Contributor
      Nov 26, 2019

      LinusCansby 

       

      Thanks for your reply, Linus.

      Can you please kindly advise what the "direct routing number" could be?  Available DIDs?

       

      I don't have Calling Plans license.

      What I have :   availabe DIDs from local Telco service provider;

      internal extension phone number;  on-premises IP-PBX; on-premises SBC(testing now).

       

      Just a thought:

      Maybe I could assign any one of available DIDs as the "direct routing number"?
      And program the phone number or some routing rules on the on-premises SBC?

      Then the inbound calls could go through (PSTN ->on-premises voice gateway->) SBC->Teams->Teams desk phone. 

       

       

      Best regards,

       

      HZ

       

      • andrewinfinitel's avatar
        andrewinfinitel
        Brass Contributor
        Nov 28, 2019

        HowardZhou Hi Howard, you should purchase DID numbers from your SIP trunk provider. I presume your SIP trunk provider is also hosting the SBC?

         

        You will need to pair the SBC to your office 365 tenant using powershell. And you will also be able to assign DID numbers to users via powershell.

         

        Once this is done any users who have the phone system add-on will be able to make and receive calls using Teams.

         

        Thanks

         

        Andrew

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