[reSIProcate] DUM state machine

[Derek MacDonald]

Here is a reason that onConnected is called when a 200 is received:

Alice calls Bob:

Alice			        Bob
 |
 |---------- INVITE ------------>|
 |                               |
 |<----------  180 --------------|
 |                               | <-- Bob Picks Up
 |<----------  200 --------------|
 |                               |

As soon as Bob picks up the phone the 200 can be sent.  Bob is likely to say
hello as soon as he picks up the phone.  Since media is being sent, the
connected state makes sense. User Agents that don't receive media until the
200 is receive are unlikely to interact well with phone style endpoints.  I
believe they also might be violating 3264.

--Derek

 -----Original Message-----
> From: resiprocate-devel-bounces at list.sipfoundry.org [mailto:resiprocate-
> devel-bounces at list.sipfoundry.org] On Behalf Of Scott Godin
> Sent: Thursday, November 17, 2005 5:19 AM
> To: Francesco Fondelli; Joe Boucher
> Cc: resiprocate-devel at list.sipfoundry.org
> Subject: RE: [reSIProcate] DUM state machine
> 
> I kind of like this proposal too - it offers more flexibility.  But
> changing the callbacks now - would effect any current applications.  It
> wouldn't be too hard for me to fix up my app.
> 
> I would like to hear from the other core DUM designers on this one.
> 
> Scott
> 
> > -----Original Message-----
> > From: Francesco Fondelli [mailto:francesco.fondelli at gmail.com]
> > Sent: Thursday, November 17, 2005 6:35 AM
> > To: Joe Boucher
> > Cc: Scott Godin; Steve Robichaud;
> resiprocate-devel at list.sipfoundry.org
> > Subject: Re: [reSIProcate] DUM state machine
> >
> > On 11/16/05, Joe Boucher <jboucher at smartlink.net> wrote:
> > [cut]
> > > I'd say the proper mode of callback behavior would be:
> > > - Calling onAccepted() when the 200 is sent
> > > - Calling onConnected when the ACK is received
> >
> >
> > I'd *really* like this behavior. Actually I have to use tricks using
> > timers to
> > proper mark a call as started (from a billing point of view) because
> there
> > is
> > no indication of "onAckReceived". To have onConnected() called when
> the
> > ACK
> > is received would be great.
> >
> > my 2 cent
> > Ciao
> > FF
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