Validate a domain for direct routing
This article describes the process of validating domain name ownership by using the Azure portal.
A fully qualified domain name (FQDN) consists of two parts: host name and domain name. For example, if your session border controller (SBC) name is
sbc1 is the host name and
contoso.com is the domain name. If an SBC has an FQDN of
acs is the host name and
sbc1.testing.contoso.com is the domain name.
To use direct routing in Azure Communication Services, you need to validate that you own the domain part of your SBC FQDN. After that, you can configure the SBC FQDN and port number and then create voice routing rules.
When you're verifying the domain name portion of the SBC FQDN, keep in mind that the
*.azure.com domain names aren't supported. For example, if you have two domain names,
sbc.contoso.com as the SBC name.
If you're using a subdomain, make sure that this subdomain is also added and verified. For example, if you want to use
sbc.acs.contoso.com, you need to register
Add a new domain name
- Open the Azure portal and go to your Communication Services resource.
- On the left pane, under Voice Calling - PSTN, select Direct routing.
- On the Domains tab, select Connect domain.
- Enter the domain part of the SBC FQDN.
- Reenter the domain name.
- Select Confirm, and then select Add.
Verify domain ownership
On the Domains tab, select Verify next to the new domain that you created.
The Azure portal generates a value for a TXT record. Add that record to your domain's registrar or DNS hosting provider with the provided value.
It might take up to 30 minutes for a new DNS record to propagate on the internet.
Select Next. If you set up everything correctly, Domain status should change to Verified next to the added domain.
Remove a domain from Azure Communication Services
If you want to remove a domain from your Azure Communication Services direct routing configuration, select the checkbox for a corresponding domain name, and then select Remove.