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IMS S/I-CSCF Testing

The S/I-CSCF solution tests the key functions of the S/I-CSCF. It emulates the IMS subscribers supporting IMS AKA and IPSec as well as the rest of the IMS core network, which includes the P-CSCF and HSS—all on a single test platform.

Key features

  • 2 560 000 subscribers supporting protocol compliant registration refresh using IMS AKA and or HTTP digest
  • 4250 calls per second
  • 9500 registrations per second with authentication
  • Response latency characterization for registration and call setup
  • SIP message definition (valid, invalid and proprietary) using a GUI or text-based editor
  • Call flow creation (valid, invalid and proprietary)


  • Complete test lifecycle coverage: feature, negative, load, regression, interoperability and scalability testing
  • IMS registration testing including AKA and HTTP digest
  • Response latency measurement under various network load conditions
  • Impact measurement of message flood such as registration and DoS flood on the response latency

IMS S/I-CSCF Testing

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