[Freeswitch-users] uuid_media hangs

Thu Jun 10 10:17:20 PDT 2010

why ?
  ----- Original Message ----- 
  From: Kristian Kielhofner 
  To: freeswitch-users at lists.freeswitch.org 
  Sent: Thursday, June 10, 2010 1:00 PM
  Subject: Re: [Freeswitch-users] uuid_media hangs

  That's completely ridiculous.

  -- 
  Kristian Kielhofner 
  http://blog.krisk.org

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  From: freeswitch-users-bounces at lists.freeswitch.org <freeswitch-users-bounces at lists.freeswitch.org> 
  To: freeswitch-users at lists.freeswitch.org <freeswitch-users at lists.freeswitch.org> 
  Sent: Thu Jun 10 12:30:42 2010
  Subject: Re: [Freeswitch-users] uuid_media hangs 

  > are very keen to actually follow all these silly RFC
  I agree, usually RFC are created first by university so by students...

    ----- Original Message ----- 
    From: Anthony Minessale 
    To: freeswitch-users at lists.freeswitch.org 
    Sent: Thursday, June 10, 2010 12:09 PM
    Subject: Re: [Freeswitch-users] uuid_media hangs

    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

    FreeSWITCH http://www.freeswitch.org/
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    Twitter: http://twitter.com/FreeSWITCH_wire

    AIM: anthm
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