![Sonus SBC 5XX0 5.0.4R1 IOT Skype for Business 2015 Pure IP Application Notes - Interoperability Testing Documentation - Ribbon Documentation Center Sonus SBC 5XX0 5.0.4R1 IOT Skype for Business 2015 Pure IP Application Notes - Interoperability Testing Documentation - Ribbon Documentation Center](https://support.sonus.net/download/attachments/108399554/PSTNgateway.png?version=1&modificationDate=1496932955000&api=v2)
Sonus SBC 5XX0 5.0.4R1 IOT Skype for Business 2015 Pure IP Application Notes - Interoperability Testing Documentation - Ribbon Documentation Center
![Sonus SBC 5XX0 V5.0.5R0 IOT Xaccel SIP Application Note - Interoperability Testing Documentation - Ribbon Documentation Center Sonus SBC 5XX0 V5.0.5R0 IOT Xaccel SIP Application Note - Interoperability Testing Documentation - Ribbon Documentation Center](https://support.sonus.net/download/attachments/122290504/network%20diagram.png?version=1&modificationDate=1509989688000&api=v2)
Sonus SBC 5XX0 V5.0.5R0 IOT Xaccel SIP Application Note - Interoperability Testing Documentation - Ribbon Documentation Center
![anynode The Software SBC - Product Info - Microsoft Teams Direct Routing - English by TE-SYSTEMS - Issuu anynode The Software SBC - Product Info - Microsoft Teams Direct Routing - English by TE-SYSTEMS - Issuu](https://assets.isu.pub/document-structure/230106100143-11588444fd9c3523c179375d93e2394a/v1/93f5faccc97ffcab20c10a653dc671ca.jpeg)