Microsoft Teams - Adding Domains in Microsoft Admin Center 

Step 1 - Login to to Microsoft Admin Center

1. Go to the Microsoft 365 Admin Center admin.microsoft.com.
   Make sure that the account you are using has at least Teams Admin Role or Global Admin Role and is using a license type that supports voice for instance E5, E3+Phone system, E1+Phonesystem.
2. When above is cleared then on the left pane. Select Show all > then go to Settings > then go to Domains.

Step 2 - Create the DNS (Domains)  

When you are in the Domains section in the admin portal you will have the button with:

+ Add domain

1. Click this button and fill in the first out of the two DNS (Domains) provided by your Telavox Representative. To make it simple, start off with the one which has sbc1 in its name. It should look like below picture:
   
2. When this is done click on “Use this domain” in the bottom of the page then proceed to Step 3.

Step 3 - Adding a TXT-Record to the DNS (Domain)

1. Choose “Add a TXT record to the domain’s DNS Records” as shown below:
   
2. Then press “Continue” at the bottom of the page. When this is done proceed to Step 4.

Step 4 - Saving the TXT Record

1. You will then be presented with the TXT records (as shown below) copy the TXT Value and save it somewhere locally together with its domain name - this will be needed later.
   
2. When this is done press “Verify” at the bottom of the page. 
   This will generate an *error message (Error message is expected and more info can be found at the end of this guide).
3. Ignore this error message for now and press “close” at the bottom of the page. The error message will look something like the below picture:
   

Step 5 - Completing TXT Records with its corresponding Domains

The TXT Value (Record) that you saved from Step 4 needs to be aligned with the DNS (Domain) that you have created. It should look like the example below: 

tvxteams1337-sbc1.sfbcust.telavox.se
MS=ms37437805

When this is done we will need to repeat the same process for the DNS (Domain) named sbc2.
This is done via repeating the process from Step 1 again so you end up here again.

The end result - which will need to be sent back to Telavox should look like below:

tvxteams123456-sbc1.sfbcust.telavox.se
MS=ms37437805

tvxteams123456-sbc2.sfbcust.telavox.se
MS=ms69432301

When this is has been done - await confirmation from Telavox and proceed to step 6.

Step 6 - Completing Domains when DNS is rolled out from Telavox

1. Now we need to complete Domain setup in the Microsoft admin portal where both sbc1 and sbc2 are currently in the state of incomplete setup. This is done via clicking the first domain sbc1 and you end up in the “How do you want to verify your domain” section.
2. Click “Add a TXT record, add an mx record to the domains DNS records” then press Continue.
3. You will now be prompted with the TXT-Record you had outputted from Step 4 which is the same as before. Now press Verify.
4. You will now be prompted by “How do you want to connect your domain” just press Continue.
5. On the next page you will have “Add DNS records” unselect “Exchange and Exchange Online protection”.
   
6. Telavox will not provide and host any email services this is why this box is unselected. 
   To move forward press “Continue” - Now one of your domains is set up.

Repeat the same process for sbc2 so both domains have been verified.

The next step is to go to the Direct Routing Guide provided by your Telavox representative.

* Error Message explanation: 
When we are at this state when the DNS (Domains) is not created in Telavox DNS Servers you will see under Domains  “Incomplete setup” on the two created domains with the error message attached in step 4. This is due to the fact that Telavox needs the TXT-Record to verify domain ownership and thus they cannot be created at the same time and therefore will be in a limbo state until both have completed their setups.