Why can't I call this number?

Every time I call my friend's phone my phone rings only one time and it hangs up by itself how can I fix this problem? She can call me but I can't call her at all only text her. I have an iPhone and we both have t mobile. This has been happening for a while.

Do I need an adapter for the iPhone charger?

I know the iPhone 5 has a new smaller charger, but what can you do with it without getting the USB adapter? Does it come with a wall charger that will let you charge it up from a power socket? Can you plug it in to your computer to sync it with iTunes to put your music on it? If not, can I somehow transfer my music wirelessly?

IPhone 5 case or screen protector?

I ordered the iPhone 5 but I really want to make sure I don't drop it. The otterbox defender is an option but I personally don't like large, bulky cases that hide the glamour of the design. I'm debating whether or not to get a full body Screen protector from Steinheil or Ghost Armor, probably Steinheil Ultra Crystal though, or get the Ultra Thin Air case from Steinheil. The case comes with a front screen protector, I think, so I want to decide which is better.
http://www.spigen.com/cell-phone/apple-iphone/iphone-5/iphone-5-case-ultra-thin-air-series.html

Anyone who has IPhone io6 update, I need your

If you have the iPhone IO6 update, I need your help! My iPhone 3G just asked me if I would like to update to io6. Should I? Also, what is Siri? Is it that talking thing that's on iPhone 4s?

IPHONE 5 screen cracked and I don't have insurance for it

I just got my IPHONE 5 the day after it came out at Radio Shack. We didn't get insurance for it, so now we can't get a new one every time it breaks. I dropped my phone on the floor and it just shattered. My phone also bent inside. What do I do? Please help! I do not want to buy another IPHONE 5. I want this screen fixed for a good price that is under about $50.