asterisk users - Feb 2007 - API Originate Action - distinguishing between No Answer and Invalid phone number

I've discovered that when dialing out using API's Originate action, a no
answer is considered a failed attempt, while a busy is considered a
successful attempt.  The problem I'm having is that when I dial an
invalid number, say a disconnected number that gives a fast busy, my
CDRs are identical to those generated by a no answer attempt.

Is there a way to distinguish between a no answer and an invalid?  For
me, a 'failed' attempt is dialing an invalid number, and I'd like
the
CDRs to reflect that.  I'd like a no answer to be as 'successful' as
a
busy.  

I'm familiar with the 'OriginateFailure' event and it's
'Reason' field,
but I don't know how to get that reason into the CDR.  Is that possible?

Thanks,
MC

On 2/1/07, Michael Collins <mcollins@fcnetwork.com>
wrote:
>
> Is there a way to distinguish between a no answer and an invalid?  For
> me, a 'failed' attempt is dialing an invalid number, and I'd
like the
> CDRs to reflect that.  I'd like a no answer to be as
'successful' as a
> busy.

The ${DIALSTATUS} channel variable stores the result of the dial attempt:
http://www.voip-info.org/wiki-Asterisk+variable+DIALSTATUS

You can store it on the CDR's userfield column using the cdr function:
Set(CDR(userfield)=${DIALSTATUS})
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