Setting up a CCTV system through Virgin Media broadband?

I've recently bought and installed a CCTV system with 4 fixed cameras and a 2Tb DVR. I can see the view from the cameras through my iPhone when I'm logged on to my home Wi-Fi but I can't see them when I'm away from home. I think it's all down to IP settings and Ports but to me it's all gobbledegook!

Is anyone able to help me set it all up if I pay them a fee? I.e. Provide me a little tech support? I'm certain that it would take anyone who knows what they are doing about 10 mins to sort it all out.

I'm in Stafford if anyone's local!

All the very best

Received a blocked call on my Verizon Iphone?

Today I received a blocked call and was not able to answer at the time. I tried to call back to see who it was but no number is displayed and my phone will not dial it. I never blocked anyone from calling me. Is there a way to find out who called me?

Why is my iPhone 5 receiving messages late?

So I've recently gotten a T-mobile iPhone 5 & it's been fine the first month but outta no where my messages started to come in late. Sometimes 2-3 hours later. I tried everything from soft and hard reset. Anyone know the problem or how I can fix this? Is it the phone, or service problem?

Fix a DNS error router problem?

I can't use my wi-fi with any of my devices(ps3, iphone, computer) none of it is working. When i try to use it i get an error page and it says i have a DNS server error, how do i fix this?

Is iPhone 3G still a good phone to buy?

I can't afford the 3GS considering I have a go phone plan and I only babysit. I'm wondering if its still okay to buy I'm not really worried about apps because I have an iPod touch 5th generation (it was a gift)

What's a good iphone lens to get?

As a gift for a friend who likes to take photos I want to get one of those lenses that you can attach to your iphone to enhance it but I really don't know which to get! Which would you find more useful - fisheye, wide lense, macro? I don't want to spend too much, can anyone point me in the right direction of which brand or model I should be looking at.cheers!

Added (1). Oh and it's for an iphone 4s