Microsoft Teams

As part of Teams Direct Routing expansion Microsoft has deployed new instances of Microsoft Teams Direct Routing infrastructure in Australia. Two new IP addresses (52.114.16.74 and 52.114.20.29) for customers connecting to this new Australian infrastructure. The SIP signaling connection points for Direct Routing are the following three FQDNs: sip.pstnhub.microsoft.com  – Global FQDN –. When the SBC sends a request to resolve this name, the Microsoft Azure DNS servers return an IP address pointing to the primary Azure datacenter assigned to the SBC. sip2.pstnhub.microsoft.com  – Secondary FQDN – geographically maps to the second priority region. sip3.pstnhub.microsoft.com  – Tertiary FQDN – geographically maps to the third priority region.   IP Address of the FQDN’s are listed in Microsoft Website https://docs.microsoft.com/en-us/MicrosoftTeams/direct-routing-plan

After Cisco Cube/Voice Gateway/SBC was certified for Microsoft Teams Direct Routing its now another vendor which has been certified for Teams Direct Routing Services. Avaya SBC are now certified for Microsoft Teams Direct Routing enabling the organization who are using the Avaya SBC to Interop with the PSTN Integration with Microsoft Teams. Currently SBC Avaya Session Border Controller for Enterprise (ASBCE) with the Release 8.1.1 version is Certified for Microsoft Teams Direct Routing. This will only support the Non-Media-Bypass Test Cases for Microsoft Teams Direct Routing. Microsoft Roadmap reference  66465 Reference: - All the SBC Certified for Microsoft Teams Direct Routing List here .