Hey everyone, I've been starting to learn more and more about VOIP and was hoping some of the more advanced users could help me out. Let me start out by saying what I want to do. I run a small business and want to have this be my phone system. I would like 4-5 extensions in the office, but also an extension at my house. So when you call the office number it'll ring in the office and at my house. Right now I have it setup where I have the server (grandstream) at my office and 3 phones (grandstream). I have them working well where they can call each other and I can call out on the PSTN line. Where I have problems is when a call comes in, the caller will hear a couple of rings on their phone before ours rings. And the main problem is that I cannot figure out how to setup a phone at my house. So that it connects to the server at work. We do not have a static IP at the office, can I use a ddns? Is the main reason I cannot connect to the office server due to our router/firewall? We are a small business, so I am the "techie" guy, and I know a decent amount, but nothing compared to some of you guys, so any help would be greatly appreciated! Thanks, -Jon P.S. the product seems really cool and I like it alot!!