How to open specific ports? VOIP project behind Freesco

Support section for FREESCO v0.4.x

How to open specific ports? VOIP project behind Freesco

Postby jvin248 » Mon Sep 26, 2011 6:47 am

.

I'm putting a VOIP system behind a freesco box and need to open some ports for it. Where can I find a good description on how to do this?

And is there a way to do a simple 'quality of service' effect on with Freesco (again, to protect the VOIP ports)? I assume not but there's a lot in Freesco and maybe a chance there is a way to do it.

Thanks!

.
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Re: How to open specific ports? VOIP project behind Freesco

Postby Lightning » Mon Sep 26, 2011 11:26 am

Before you begin make sure that you understand that all ports are already open on FREESCO and most VOIP systems will work if you set the firewall in "s" mode in the setup -> system settings -> expert settings menu.

However if your system will not then it could be caused from a kernel option for "loose UDP" that can be enabled in a new kernel. There is also port forwarding if your system requires direct inbound access from the Internet that can also be enabled for a specific port or port range which is also in the setup -> configure servers -> port forwarding.
If you are afraid that you might make a mistake. The chances are high that you will never learn anything.
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Re: How to open specific ports? VOIP project behind Freesco

Postby justdave » Tue Sep 27, 2011 7:31 pm

Here are the port forwarding rules that I have for Asterisk. These should be the same for other sip products.

Code: Select all
udp,5036,5036,192.168.3.23   # Asterisk IAX
tcp,5060,-5082,192.168.3.23   # Asterisk
udp,5060,-5082,192.168.3.23   # Asterisk
udp,4569,4569,192.168.3.23   # Asterisk IAX
udp,11000,-15000,192.168.3.23   # Asterisk


Note that I am using ports 11000-15000 for sip channels. I believe most products use 10000-20000.

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