[asterisk-users] iptables miss up phone calls if not used properly

[khalid touati]

Hi Guys,
i wanted to share this with u and ask for little help at the same time:
i used iptables to secure my server, so i wnet ahead and blocked avery thing
except a couple of domain protocols and UDP ports of SIP, IAX2 and that
range 15000 to 20000, tested it and OK. when in production, the calls were
taking a huge time 7s to be established and somtimes after call setup people
cannot hear ech other (but not all the time which weird), so iptables can
miss up performance if not set correctly (even if it's working, stuff like
this can happen). so if any body have some lines of iptables that secure
server and don't cause performence trouble to phone calls please share with
me (i am using Centos 5.3 asterisk 1.4.24).
Thanks!

-- 
Abdullah
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