On 02/10/11 20:42, dotnetdub wrote:


On 2 October 2011 16:20, Sebastian Arcus <[email protected]
<mailto:[email protected]>> wrote:

    Hello list,

    My setup is as follows:

    Trunks: 2 sip trunks, one with voipcheap.co.uk
    <http://voipcheap.co.uk>, one with sipgate.co.uk <http://sipgate.co.uk>
    Extensions: 1 hardware sip phone
    Asterisk: 1.8.7.0

    Everything is working fine, except bridging between the sipgate and
    voipcheap trunks. I'll explain:


SNIP

What kind of firewall are you using?

SNIP

Thanks Brian - that seems to be the correct call. After fiddling pretty much with every setting I can think of - I have just taken down the iptables firewall on the Linux box. The calls have sound now. I'm looking at the logs now to see if I can figure out which packets is the firewall discarding. The whole thing is behind a Netgear adsl modem/router with it's own firewall - and *no* port redirection setup. And it is working fine when the Linux firewall is stopped. So the Linux firewall must be pickier then the one in the Netgear router.

I'll see what I can figure out.

Thanks again,

Sebastian

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