[asterisk-users] API Originate Action - distinguishing between No Answer and Invalid phone number

[Michael Collins]

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