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Interworking: Testing step by step

Interworking: Testing step by step

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Interworking: Testing step by step

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  1. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  2. Interworking:Switched-Circuit and VOIP world Switched Circuit Network TDM Interconnection System VOIP Network Ethernet • Switched circuit uses TDM interfaces, circuit supports • VOIP uses Ethernet interfaces, packets supports

  3. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  4. Interworking: IUT and Simulation Tester Simulation Switched Circuit TDM IUT Simulation Ethernet VOIP • IUT: PABX, Gateways, CO, Softswitches… • Simulation: protocol test equipment + heterogeneous interfaces

  5. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN and H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  6. Interworking: functional testing of signalling over each interface Functional Simulator Q921/Q931 Emulation ISDN ISDN-PRI IUT Functional Simulator H323 RAS Emulation Ethernet H225-SIG Emulation • Tester simulates simultaneously H323 and ISDN • Supports of N interfaces (PRI +Ethernet)

  7. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  8. Interworking: functional testing Q931 and H225 Signalling interworking SETUP ISDN Q921/Q931 Emulation CALL PROC ISDN-PRI Simulation = Interworking ISDN-H323 IUT SETUP H323 RAS Emulation H225-SIG Emulation CALL PROC Ethernet • ISDN-H323 Interworking checks the signalling processing • Establishment of calls in both directions

  9. Interworking: functional testing Q931 and H225 Signalling interworking • ISDN and H323 PDU’s show interworking

  10. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  11. Interworking: conformance of ISDN Layer 3 protocol SETUP Conformance Simulator ISDN ISDN ATS CALL PROC ISDN-PRI IUT Functional Simulator RAS Emulation H323 H225-SIG Emulation Ethernet • ISDN Conformance testing checks the Q931 in the D channel • IUT needs an H323 responder to process the ISDN calls

  12. Interworking: conformance of ISDN Layer 3 protocol • The TTCN-trace events are added to the protocol events • H323 activation allows to receive PDUs corresponding to the “implicit send”

  13. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  14. Interworking: conformance of H225 Signalling protocol Functional Simulator ISDN ISDN D-channel ISDN-PRI IUT SETUP Conformance Simulator H323 H225 Conformance CALL PROC Ethernet • H225 Conformance testing checks the RAS and SIG protocols • IUT needs an ISDN responder to process the H323 calls

  15. Interworking: conformance of H323 protocol • The TTCN-trace events are added to the protocol events

  16. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  17. Interworking: conformance of ISDN and H323 SETUP ISDN Q921/Q931 Emulation CONNECT Simulation = conformance ISDN-H323 IUT SETUP H323 RAS Emulation H225-SIG Emulation CONNECT • ISDN-H323 conformance checks the protocols translation • Concurrent TTCN manages both of the sides

  18. Interworking: conformance of ISDN and H323 • ATS based over purposes of ETSI TS 102 169-1

  19. Interworking: conformance of ISDN and H323 • Concurrent ETS checks both of the ISDN and H323 sides

  20. Interworking: conformance of ISDN and H323 • ETS provides verdicts for each TestCase and final report

  21. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  22. Interworking: functional testing ISDN and H323 bearer availability SETUP ISDN Q921/Q931 Emulation CONNECT B- channel TONES Simulation = Interworking ISDN-H323 + continuity IUT SETUP H323 RAS Emulation H225-SIG Emulation CONNECT RTP logical channel TONES • ISDN-H323 Interworking checks the bearer channels • Checking continuity by using tones transmission

  23. Interworking: functional testing ISDN and H323 bearer availability • RTP send wav file with Tones detected by ISDN side

  24. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  25. Interworking: functional testing of ISDN and H323 quality SETUP ISDN Q921/Q931 Emulation CONNECT B- channel WAV FILE Simulation = Interworking ISDN-H323 + PESQ IUT SETUP H323 RAS Emulation H225-SIG Emulation CONNECT RTP logical channel WAV FILE • Bearer Channels carried wav files • Quality measurement uses PESQ algorithm

  26. Interworking: functional testing of ISDN and H323 quality • The Quality events are added to the protocol events • Events are similar for TDM and RTP flow”

  27. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  28. Interworking: conformance of ISDN and H323 bearer availability SETUP ISDN Q921/Q931 Emulation CONNECT B- channel TONES Simulation = conformance ISDN-H323 + continuity IUT SETUP H323 RAS Emulation H225-SIG Emulation CONNECT RTP logical channel TONES • ISDN-H323 Interworking checks the bearer channels • Checking continuity by using tones transmission operator

  29. Interworking:Testing step by step • Interworking: switched circuit / VOIP • Tester and IUT • Independent ISDN and H323 functional simulation • ISDN + H323 functional simulation: signalling • ISDN conformance + H323 functional simulation • H323 conformance + ISDN functional simulation • ISDN + H323 conformance signalling • ISDN + H323 functional simulation: bearer availability • ISDN + H323 functional simulation: bearer quality • ISDN + H323 conformance signalling + bearer availability • ISDN + H323 conformance signalling + bearer quality

  30. Interworking: conformance of ISDN and H323 quality SETUP ISDN Q921/Q931 Emulation CONNECT B- channel WAV FILE Simulation = Conformance ISDN-H323 + PESQ IUT SETUP H323 RAS Emulation H225-SIG Emulation CONNECT RTP logical channel WAV FILE • Bearer Channels carried wav files • Quality measurement uses PESQ algorithm