[Freeswitch-users] uuid_media hangs

[Anthony Minessale]

The funny part is you are willing to go to all this effort to try to make us
correct it because you know the other people wont.
This type of finger pointing to RFC is typical to providers so now I have to
do free work to investigate it for you.
And I bet you are paying them money and not us, oh well, typical.....Don't
worry I won't hold it against you.

The philosophical question here is weather or not to send a requires timer
in the reinvite, so ok.
I can try to look it up for you but from a logical point of view, once you
establish in the original invite that you are going to use session timers,
every reinvite constitutes a timer refresh, so once you have agreed in the
original invite to use timers it would stand to reason to require the timer
option in every new re-invite since it represents a timer refresh.

But, let's face it... Who cares right?  its a meaningless param in an
REINVITE.  Most sip implementation wing it on most of these packet parsers.
 The sofia developers are very keen to actually follow all these silly RFC
you are trying to quote and they have been relaxing it nonstop ever since
because nobody really follows any rules in SIP they just use them to avoid
having to patch their code.  Especially in a deployed appliance in a telco.
 They are really telling you they can't support it because the code in their
sip gateway fails when it sees this and they are too lazy to change it so
they pray that some RFC will let them off the hook.  Trust me, we've had
worse.  One place refused our calls because they did not like the syntax of
our user agent string......

So bottom line is I would trust the default behavior of sofia-sip over most
things any day but if they are really doing something wrong the problem
would be in the sofia-sip library not in FreeSWITCH so I am not sure where
to tell you to look in the code to correct it because we use that code asis
and avoid hacking into it a all costs.  Try using grep into the sofia-sip
lib for the strings you know are meaningful.

P.S
All the event related things are fixed now, there was a small speed bump
along the way this week.




On Thu, Jun 10, 2010 at 4:34 AM, peely <freeswitch at peely.com> wrote:

>
> Hi,
>
> It's not a hijacked thread, I created this with an issue around uuid_media,
> initially it was hanging, then in the latest git it receives a 4xx from the
> far end due to the Requires: timer support bot being supported in the
> reinvite transaction. I did anecdotally mention problems with events, which
> I subsequently pulled off to another thread.
>
> I was looking at RFC 4028, in the examples it shows the refresh event not
> providing the Required: timer header even for the refresh of the original
> invite transaction, just the Supported: timer. There's nothing in RFC 3725
> regarding sesison timers in 3PCC but as the reinvite for the media
> adjustment is a new transaction, I don't think it needs the Requires: timer
> option to persist the timer support on the original dialogue. This is
> certainly the behaviour of the previous equipment I had on this
> interconnect
> and it operates using session timers and 3PCC in several other environments
> too.
>
> I'm not brilliant with C, but if you could please point me to the right
> approach to removing the Requires: timer field in the header I'd be happy
> to
> test it and let you know if it causes any problems with rienvites across
> various carriers and other platforms.
>
>
>
> Cheers,
>
>
> Neil.
> --
> View this message in context:
> http://freeswitch-users.2379917.n2.nabble.com/uuid-media-hangs-tp5145657p5162317.html
> Sent from the freeswitch-users mailing list archive at Nabble.com.
>
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-- 
Anthony Minessale II

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