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... Continue Reading →

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Ribbon SBC EDGE now support Teams Direct Routing behind NAT and why this is a game-changing news

Hi All, few days ago Ribbon released the new SBC EDGE (1K/2K) firmware 8.0.2. Apart from many fixes, the new firmware contains only a new feature, but it's enough because this is a game-changing news: The SBC 1000/2000 is supported behind a NAT device in Microsoft Teams Direct Routing; this feature enables the SBC to... Continue Reading →

New-CsOnlinePSTNGateway returns “Can not use the domain as it was not configured for this tenant”

Hi All, few weeks ago I was stuck creating a new PSTN Gateway for Teams Direct Routing due to a strange error.This is the PS command (FQDN masked)New-CsOnlinePSTNGateway -Fqdn sbc01.domain.com -SipSignallingPort 5061 -MaxConcurrentSessions 10 -Enabled $true and this is the errorCan not use the "sbc01.domain.com" domain as it was not configured for this tenant Obviously... Continue Reading →

How to change Ribbon SBC name to a routable domain for Teams Direct Routing

Hi All,in this article I'll explain step-by-step how to change the Ribbon SBC 1K/2K FQDN from a private domain to a routable domain. Problem You have an SBC 1K/2K used in a Skype for Business On-Prem deployment with a private AD Domain and you need to use it with Teams Direct Routing.Teams Direct Routing needs... Continue Reading →

How to dynamically route calls to Microsoft Teams instead of SfB with Ribbon SBC 1K/2K

Hi All, so you are implementing Microsoft Teams Direct Routing, maybe side-by-side with Skype for Business On-Prem, with a Ribbon (formely Sonus) SBC 1K/2K, and you want to improve your call routes for Teams Direct Routing.You are on the right page! If you use Ribbon (formely Sonus) SBC 1K/2K with Skype for Business, you are... Continue Reading →

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