[Asterisk-Users] SIP and firewall

[Maik Hassel]

Hello everybody,

currently my SIP phones work fine with my firewall disabled, with 
enabled iptables I can register, hear and dial, but not talk.
Which iptable entries do I have to use? Currently I am using

-A INPUT -s 192.168.1.0/255.255.255.0 -p udp -m udp --dport 5060 -j ACCEPT


Any help is appreciated

Thanks in advance
Maik