Dale Worley wrote: > On Fri, 2008-10-03 at 13:48 +0000, Scott Lawrence wrote: >> The other difference I see between your successful and unsuccessful >> cases is that SJphone is sending smaller messages that the failure >> cases. You (explicitly) routing to the GSM gateway using UDP - perhaps >> it can't cope with fragmented UDP packets? It would fit the symptoms... > > The symptoms are particularly interesting in that the failed request > appears to be entirely ignored by the gateway. We know that some > embedded operating systems will silently drop large or fragmented UDP > packets, which causes the application code to show this failure pattern. > > Dale >
Thanks Dale, the gateway support only UDP, so I can't try to setup a TCP connection. Analyzing the tcpdump capture file, it seems you're right: fragmented UDP packets are dropped. I've submitted this issue to the manufacturer, I hope they could fix it. Thanks a lot, Massimo -- Massimo Vignone CeSIA - Università di Modena e Reggio Emilia Phone: +39.059.2058032 Fax: +39.059.2058034 sip:[EMAIL PROTECTED] ISN:8032*881 _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users
