I'm installing kamailio with a public IP on a server but for some reason in can't logging with my sip client. Any help please

DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.04 DISTRIB_CODENAME=lucid DISTRIB_DESCRIPTION="Ubuntu 10.04.2 LTS"

Iptables config *filter :INPUT ACCEPT [4231862:931412269] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [5258380:5441121579] -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -p udp -m udp --dport 10000:65000 -j ACCEPT -A INPUT -p udp -m udp --sport 10000:65000 -j ACCEPT -A INPUT -p tcp -m tcp --dport 10000:65000 -j ACCEPT -A INPUT -p tcp -m tcp --sport 10000:65000 -j ACCEPT -A INPUT -p tcp -m tcp --dport 5060 -j ACCEPT -A INPUT -p tcp -m tcp --dport 5061 -j ACCEPT -A INPUT -p udp -m udp --dport 7722 -j ACCEPT -A INPUT -p udp -m udp --dport 5060 -j ACCEPT -A INPUT -p udp -m udp --dport 5061 -j ACCEPT COMMIT