----- Original Message ----- From: "Brian Watters" <[EMAIL PROTECTED]>
To: "'Asterisk Users Mailing List - Non-Commercial Discussion'" <[email protected]>
Sent: Saturday, April 23, 2005 12:52 AM
Subject: [Asterisk-Users] IP Phones and firewalls ...
Hello all,
Here is our problem ..
IP SIP phones remote ..
They will connect to our IP PBX (Asterisk Server) without issue however no voice makes it when anyone answers a phone call made by one of these IP phones.
So this means SIP is working but RTP is not, Here is what I currently have on the firewall (http://m0n0.ch/wall).
Firewall Rules
TCP/UDP * * 192.168.2.253 5060 NAT SIP Protocol UDP * * 192.168.2.253 4569 NAT IAX Protocol UDP * * 192.168.2.253 5036 NAT IAX Protocol UDP * * 192.168.2.253 10000 - 20000 NAT RTP UDP
NAT Rules
WAN TCP/UDP 5060 - 5099 192.168.2.253 5060 SIP Protocol WAN UDP 4569 192.168.2.253 4569 IAX2 Protocol WAN UDP 5036 192.168.2.253 5036 IAX Protocol WAN UDP 10000 - 20000 192.168.2.253 10000 - 20000 RTP UDP Range
IP phones are Sipra 841's and work great when on the same subnet as the *
server, this only becomes an issue when offnet and of course outside of the
firewall.
So I am stumped as to why this does not work .. I have logging turned on for
all of the above and see no packets getting dropped .. Anyone there able to
shead some light on this ..
Brian
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