[Asterisk-Users] IP Phones and firewalls ...

[Henry Devito]

When you do a sip show peers from the what IP address does it show for the 
841?
----- Original Message ----- 
From: "Brian Watters" <brwatters at abs-internet.com>
To: "'Asterisk Users Mailing List - Non-Commercial Discussion'" 
<asterisk-users at lists.digium.com>
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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