2011/8/31 Iñaki Baz Castillo ibc@aliax.net:
Second question. Wouldn't be better if the UDP "ping" contains CRLF+CRLF rather than \x00\x00\x00\x00 ? At least, CRLF+CRLF is already defined as a SIP TCP ping.
This is indeed documented:
UDP package - 4 bytes (zero filled) UDP packages are sent to the contact address.