Teams - Call Authentication

Setup Call Authentication using SIP.

Pre-requisites

  1. Annual Contract Agreement with First Orion Branded Communications (Post paid)
  2. Access to First Orion Customer Portal
  3. Vetted and Approved Business
  4. Teams Phone
  5. Microsoft Teams
  6. Public trusted TLS certificate and private key for the SBC
  7. Microsoft root certificates must be in CA list on SBC
  8. Appropriate access to DNS provider
  9. Fully qualified domain (FQDN)

Configuration Pre-requisites

  • DNS Entry and SSL Certificate
    • Option 1: First Orion Managed Cert. For this option First Orion will setup a DNS record, then the client will register the Subdomain/FDQN. First Orion will use Wildcard cert.
    • Option 2: Client Managed Cert. For this option the client setups a DNS cord and certificate for the Subdomain/FDQN.
  • Microsoft Teams licensing

Teams Configuration

Step 1: Direct Routing

  1. Login to Teams admin portal - https://admin.teams.microsoft.com
  2. Navigate to: Voice -> Direct Routing-> SBC’s
  3. Click “+ Add” to configure to SBC
  4. Provide the following configuration
    1. Enabled: True
    2. FQDN: configured previously
      1. Example: f1.firtstorion.com
    3. SIP SIgnaling Port: 5061
    4. Failover response codes: 408,410,500,501,503

Step 2: Voice Routes

Note: A successful SBC responsible for Call Authentication should be configured before assigning to a Voice Route

  1. Navigate to: Voice à Direct Routing à Voice Routes

  2. Click “+ Add” to configure to new Voice Route

  3. Provide the following configuration

    1. Name: First Route Voice Route (example)

    2. Priority: 1

    3. Click “Add SBCs

    4. Select created Call Authentication SBC from Direct Routing steps

    5. Click "Save"

    6. Confirm Voice Routes

      1. Note: Call authentication should have a higher priority than PSTN route.


Step 3: Make Test Phone Calls

Make test calls to confirm Branding.


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