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Sonus understands that a key to our customers' continued success is interoperability with existing network equipment. Our solutions are designed and tested to provide interoperability with legacy equipment (for example, TDM, H.323), multiple SIP vendors and standards, application providers, international standards, PBX, and soft switches.

The SBC 5000 software operates with the following network devices:

  • SIP/H.323 compliant IADs and IP-PBXs
  • Sonus PSX Softswitch via SIP redirects and/or Diameter+ protocol
  • Sonus SBC 9000 through SIP call signaling and Gateway IP signaling


 To view Sonus SBC product interoperability testing information,  Click here.

To request interoperability test (IOT) information, please contact us at


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