search for: udp4569

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2007 Nov 18
1
[IAX] Does the client have to use UDP4569 as source port?
Hello Since SIP is a bit of a pain to use with NAT firewalls in the way between clients and *, I'm considering IAX for soft/hardphones. One thing though: Does the client have to also use UDP4569 as its source port when connecting to * on UDP4569, or can the client use any UDP port dynamically, making it easy to have several phones in the LAN behind the firewall all connecting out to *? Thank you.