[Asterisk-Dev] Asterisk PSTN gateway billing issue

Noel Sharpe noels at radnetwork.co.uk
Wed Jun 1 01:37:54 MST 2005

Steven wrote:

>On Tue, 2005-05-31 at 14:32 +0100, Noel Sharpe wrote:
>>It's at this point that the call is reported as being "answered", but in 
>>reality the destination has not even begun ringing yet.  The CDR files 
>>of the asterisk server show the correct call duration.  Of course the 
>>CDR logs from the SER side are not correct, as it reports that the call 
>>was answered when it was placed on the zap channel.  If the last leg of 
>>the call does not ever complete, the CDR logs on the SER side still show 
>>the call as being answered.
>Am I correct that you are complaining that the SER and asterisk CDRs
>aren't matching up? If so and you mention that the asterisk CDR is
>correct, then you need to dive into the SIP implementation and see why
>it is sending answered before the line is actually answered. 
I think that is what is happening.  It seems that the Asterisk SIP 
implementation is sending the ACK to inform the client that the inbound 
SIP channel has been bridged to the ZAP channel. Is this a defect, or 
are there reasons that this notification should be sent?

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