Trunk trixboxes (two right now!)

Recipe;
Two trixboxes, asterisk,
One FreePBX
Your hands to type
Keystone IT' blog article.
I have been trying to trunk two trixboxes for a while. I had some success and mostly failures. I needed to connect two remotely located offices together and be able to dial an extension and reach the extension from either office. When I was searching for the information, blog search, voip and telephony sites, I came across "Trunking Two Trixbox Servers" article on Keystone IT blog.
It was plain sailing from there and now I have two trxboxes acting as one. I will leave the details to keystone it article. Read it here.