How do I calculate PDD in the freeswitch CDR’s?

Per http://wiki.freeswitch.org/wiki/PDD

 

 

In Seconds:

  • progress_mediasec
  • progresssec

In milliseconds (1000 = 1 second):

  • progress_mediamsec if there was media
  • progressmsec if there was no media

In MicroSeconds (1000 = 1 millisecond)

  • progress_mediausec
  • progressusec

but most of my calls that are not answered are 0 on both A and B legs.