The TCP/IP stack of your server may decide to drop an UDP packet if it
cannot re-assemble it correctly (like not all the IP fragments were
received).
In such a case, you see the IP packets (carrying the fragments) on
network level, but they are never delivered at application level.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 17.05.2016 16:05, Nabeel wrote:
The next question - is this INVITE reaching your opensips script ?
to be sure that the OS delivers the UDP packet to the opensips
application.
I don't have any firewall on my server. Why would the UDP packet get
blocked between entering the server and reaching opensips script? The
opensips server is running without errors. Other calls work fine.
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