Direct Routing SBC-to-SBC OTT SIP Routing

In a Microsoft Teams Direct Routing (DR) architecture, Imagicle Digital Fax can be easily interfaced to the local DR SBC via Secure SIP trunk.

DR SBCs are always visible on Internet, while Imagicle is providing three different SBCs, with public IP addressing, to route fax transactions in the following three macro-regions:

• Europe Public SBC: 3.126.254.122

• Middle East SBC: 3.28.33.175

• North America SBC: 3.21.111.170

The SBC-to-SBC routing happens through a Secure SIP trunk running over Internet OTT and using TLS 1.2 on port 5061, without authentication. SIP peering requires the exchange of a Digital Certificate signed by a Certification Authority. Self-signed certificated are not supported.

On DR SBC, you just have to add a route for each fax DID, pointing to above mentioned Secure SIP trunk. Therefore routing does not pass through MS-Teams Cloud.

Please contact Imagicle Support for more details.