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The PBX was invited more than 50 years ago, SIP over 10 years. And we still just implement ISDN over IP. Time for a reboot, time to raise the bar and use the standards that has been developed during the last 10 years.
This talk, originally presented at Voip2day + ElastixWorld in Madrid 2012, presents the Edvina SIP 2012 reference profile, the thoughts behind it and where we are heading.