asterisk users - May 2006 - SIP re-invite and billing

I know this may sound like a stupid question but I will put on my flame 
retardant suit and ask anyway.

Is there any way to use/allow SIP reinvite and still track the length of the 
call?

I realize that the whole idea of reinvite is that it takes the proxy out of 
the media path which, from what I understand also kills the proxy's ability 
to track the start/end time of the call for billing purposes.

Are there any really smart guys out there with propeller hats that have come 
up with a way to get the best of both worlds?

Do we lose anything else using reinvite with Asterisk?

Thanks in advance for any help..

--Mojo

Mojo Jojo wrote:
> Is there any way to use/allow SIP reinvite and still track the length of
> the call?
This is discussed nearly every week on this list, it's well covered on
the wiki, and various other places. Have you tried to research this
before asking here?

The simple answer: you are mistaken. SIP reinvites for the media path
have no effect on billing at all.