How to import DigiCert Global Root G2 CA Cert on Ribbon SBC

Hi All, in a recent alert in the M365 Message Center (MC540239 - SIP certificate to MSPKI Certificate Authority change) Microsoft ask Customers to update their SIP devices and SBC to trust this new CA Cert. MC540239 · Published Apr 11, 2023SIP certificate to MSPKI Certificate Authority change How this affects your organization:The new Root...

Spectralink IP-DECT Server registration and Ribbon SBC in HA in a Microsoft Teams Environment

Hi All, this article will show you how to register a Spectralink IP-DECT Server (6500 and 400) to a pair of Ribbon SBC EDGE (1K, 2K, SWe Lite). This is a very common scenario in Customers migrating from SfB to Teams, with the Spectralink IP-DECT server previously configured as an SfB trusted app and now...

How to solve outbound calls authentication issues with Ribbon SBC EDGE and Teams Direct Routing

Hi All, sometimes you have to establish an Authenticated SIP Trunk between your Ribbon SBC EDGE (1K/2K/SWe Lite) and your ITSP. This is a quite easy task, described here "Configuring SBC Edge with ITSP that Requires Digest Authentication with 401 Unauthorized Challenge" and summarized in these three steps: Add a Remote Authorization TableAdd a Remote...

Microsoft Teams Music On Hold behaviour table

Hi All, Microsoft Teams Music On Hold behaviour could be sometimes difficult to understand, particularly in Auto Attendand and Call Queue scenarios. I hope this table could help you How Ms Teams Phone System manage Music on Hold Microsoft Teams uses different call flows for MOH : SIP REFER based MOH (MOHv1)SIP RE-INVITE based MOH...

How to manage alternative Caller ID in Teams via SBC

Hi All, a well known missing feature of Microsoft Teams Phone System compared to Skype for Business Server is the ability to mask the Caller ID based on the used Voice Route. In other words, we strongly miss the "Suppress caller ID / Alternate caller ID" settings in SfB Voice Route Caller ID in Teams...

Teams On-network Audio Conferencing

Hi All, a new recent feature called On-network Audio Conferencing allow to integrate Teams Meeting Audio Conferencing Service with Teams Direct Routing. https://docs.microsoft.com/en-us/microsoftteams/audio-conferencing-on-network This new feature break an historical barrier between the Teams Meeting and Teams PSTN Calls: both modes with their own licenses, they never interacted in the past. On-network Audio Conferencing will enable...

Troubleshoot Ribbon SWe Lite SBC on Azure from anywhere with ngrok

Hi All, so you have a Ribbon SWe Lite on Azure, maybe without any VPN with your Corporate Network, and you wonder how to you can use Ribbon LX Syslog to troubleshoot it. Scenario You have installed a Ribbon SWe Lite Virtual SBC on Azure, to use it with Teams Direct Routing and a SIP...

How to fix Microsoft Teams SIP 486 Busy Here to Q.850 mappings in Ribbon SBC

Hi All, in this article I'll show you how to solve a very strange behaviour of Ribbon SBC EDGE (1K/2K) in a Microsoft Teams Direct Routing scenario, where the SIP Response 486 Busy Here is not correctly converted in the Q.850 Cause Code 17 in a TDM (PRI/BRI) PSTN connection How to enable Busy on...