Microsoft Teams Direct Routing

Make and receive traditional phone calls


Microsoft certified SBCs

SIP Trunk



Provide Professional Services

Direct Routing

Direct Routing lets you connect a supported, customer-provided Session Border Controller (SBC) to Phone System. With this capability, you can configure on-premises Public Switched Telephone Network (PSTN) connectivity with Microsoft Teams client, as shown in the following diagram:

SBC In Your Data Center

We provide professionally certified SBC and Our Microsoft-certified professionals can seamlessly integrate direct routing into your existing communication systems for a seamless and productive collaboration experience.

Teams Direct Routing As A Service

Experience a seamless Microsoft Teams Direct Routing solution with our certified SBC hosting service on Microsoft Azure. We offer a complete package with SIP Trunking and DID services, providing a one-stop-shop for all your communication needs. Our flexible user-based pricing ensures cost-effective solutions for businesses of all sizes.

Infrastructure requirements

The infrastructure requirements for the supported SBCs, domains, and other network connectivity requirements to deploy Direct Routing

Session Border Controller (SBC)

Microsoft only supports certified SBCs to pair with Direct Routing.

We are using Microsoft officially certified SBC

Telephony trunks connected to the SBC

One or more telephony trunks connected to the SBC.

We can provide HK and CN numbers

Domains for Microsoft 365

One or more domains added to your Microsoft 365 or Office 365 organizations.

Can’t use default domain, *

Public IP address for the SBC

You need A public IP address that can be used to connect to the SBC. Based on the type of SBC, the SBC can use NAT.

FQDN for the SBC

Where the domain portion of the FQDN is one of the registered domains in your Microsoft 365 or Office 365 organization.

Licensing and other requirements

For other conditions that need to be prepared, please contact us, we will provide more detailed documents.


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