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SIP Trunk over internet on Private IP Address


#1

Hi There,

This is just a home use for personal or proof of concept setup only. I have a freepbx hosted over the internet with public IP address. My softphones can connect without a problem. I wanted to configure a small SIP gateway, so that I can call PSTN using my phone line at home. Unfortunately, my ISP gave me a private IP address. My small gateway has internet connection and can connect to the freepbx but it is because my ISP NATted my address. I have no control of the NATting, obviously. Is there is any solution to this problem, if so kindly provide link.

Thanks in advance!


#2

Ravenido,

If you are willing to try something non SIP then you might consider an IAX2 trunk. IAX2 performs well through NAT and other issues. Here’s a wiki entry with some information on how to get two FreePBX systems connected:

https://wiki.freepbx.org/pages/viewpage.action?pageId=4161588

You’ll have to learn a few new IAX2 commands but it’s not too tough. Be sure to read through all the comments (39) so you get the necessary updates/fixes.

A quick google with “iax2 trunk between two freepbx” will show you all sorts of solutions.

Jay


#3

Bookmarked!

Thanks Jay!

Although, I notice that there aren’t not much IAX gateway in eBay and they are in the US. Any of you know’s something from south east Asia region?

Thanks,
Enan


(Dave Burgess) #4

IAX2 isn’t really something a lot of commercial providers support, largely because commercial providers aren’t running Asterisk for their services. On the other hand, if you are setting up a cluster of Asterisk servers for your own use, connecting them together via IAX makes sense because of the firewall simplifications.