[Serusers] SER: Measuring ASR & PDD

Hi List,

At the moment, I log 'INVITE', 'ACK' and 'BYE' with this:

# ----------------------------------------------------------------- # Sets the acc accounting flag 4 billing # ----------------------------------------------------------------- if( (method=="INVITE") || (method=="ACK") || (method=="BYE")) { setflag(1); };

To measure (approximately) the ASR, I think it is sort of reasonable to use the formula

(number of INVITES) / (number of BYEs + number of INVITES)

The reasoning behind this being that INVITES which have been BYEd have necessarily been answered.

Now, how would you measure Post Dialing Delay? To be doing that I would need to record the 'Ringing' signal but I don't know how to do this. Any ideas?

Cheers, Jean-Michel.