Thanks for your reply, althrough I don't really know what means in the ticket 1011, ^ _ ^ But I find one way that be able to re-produce this issue in UDP transport: 1. Using UDP to register the account 2. Plug out the network line while registering ( register sip message send fail ) 3. Wait for a while, I will see the assertion. But this maybe highly-related with OS platform, and my platform is Linux-like one. Please give me some suggestion, thanks a lot. 2010/1/6 Benny Prijono <bennylp at teluu.com> > On Fri, Dec 25, 2009 at 12:36 PM, Liu Jahow <jahowliu at gmail.com> wrote: > > Hi All, > > > > I have put pjsip 1.4.0 on my target device, but I sometimes encounter the > > assertion for "invalid operation step" in sip_transport.c. > > > > I think this is a known problem with TCP. It can happen when ACK is > sent with TCP (to different destination than the original INVITE), and > if the TCP connection has not been established before another 200/OK > retransmission arrives (and hence the ACK needs to be retransmitted). > > I just created http://trac.pjsip.org/repos/ticket/1011 for this. > > Thanks for the report > > Cheers > Benny > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > -- Best Regards, Alex Liu foxconn mail : alex.ch.liu at ambit.com.tw private mail : jahowliu at gmail.com msn : jahowliu at yahoo.com.tw -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100108/294ff500/attachment.html>
