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ITU-T G.1040 AMD 1

ITU-T G.1040 AMD 1

New Appendix I - Network contribution to SIP set-up time

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ITU-T Recommendation G.1040 defines a performance metric for typical data transactions, called the network contribution to transaction time (NCTT). Session initiation protocol (SIP) produces data transactions that resemble a typical call signalling flow between an originating and terminating station, and sometimes several other entities located within the service provider's network. Appendix I to ITU-T Recommendation G.1040 describes how NCTT can be adapted for use with SIP session flows to estimate the network contribution to session set-up time.

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