<P>Hello</P>
<P>how to calculator billing exactly when IAX accept the call, my configure</P>
<P><customer> --> telco ---> asterisk --> ACD --> IAX</P>
<P>at time, for example: 11:00 i dial to asterisk</P>
<P>11:01 asterisk answer channel and dial to IAX phone (11:02)</P>
<P>ring 20 second (at 11:22).</P>
<P>when IAX answer call (11:22) and talk 10 second (11:32). and hangup (hangup finish 11:33, wait(1))</P>
<P>CDR billing as: 33 seconds, exactly time to talk are: 11:33 - 11:22 = 11 seconds</P>
<P>but CDR write duration are: 33 seconds.</P>
<P>how to adjust to CDR write duration are 11 seconds.</P>
<P> </P>
<P>any advice ?</P>
<P>Thanks</P>