Ribbon Documentation Portal will be unavailable Thursday February 2nd 2023 between 2:00 PM EST ~ 12:00 PM. More Info
Page tree
Skip to end of metadata
Go to start of metadata

In this article:


The configuration steps described in this article are examples.

Ribbon recommends referring to the SBC and PSX product documentation for detailed information on the commands, parameters, and flags used in the configuration examples of this guide.

Process the steps in the same order as described in this article.

This article describes configuring the PSX for call routing when deployed with the SBC and MS Teams. For ERE routing, refer to Configure ERE for MS Teams.


 When MS Teams initiates a call transfer (as per Teams' recommendation), the SBC sends the INVITE back to the same Teams entity from which it received the REFER. Teams, in-turn, initiates a new call towards the referred entity.

To accommodate this behavior, configure the Standard Route 3 and Username routing entities.

Configure Standard Route 1

 Enter this standard route to allow the PSX to route all the calls coming from Teams towards PSTN end points (irrespective of digits or FQDN).

Standard Route 1 towards PSTN


Configure Standard Route 2

 Enter this standard route to allow the PSX to route calls coming from PSTN end points towards different Teams tenant Trunk Groups based on the called digits.

Standard Route 2 towards MS Teams


Configure Standard Route 3

Enter this standard route to allow the PSX to route all calls towards the Teams after receiving REFER from the Teams for a call transfer towards PSTN.

Standard Route 3 towards MS Teams


Configure Username Routing

 Enter Username Routing to allow the PSX to route all call transfers towards Teams after receiving a REFER from Teams.

Username Routing towards MS Teams



  • No labels