IPhone 4 (no sim card) phone calls?

I have an iPhone 4. But sadly it does not have a sim card but I was able to activate it through ' hacktivation' with a simple jailbreak. I have SMS gv extension allowing me to send unlimited text as long as I have Wi-Fi. But I need a phone app as well an the app store apps just don't satisfy me. So I was wondering is there any way to make phone calls through the native iPhone phone app. I have attempted phone gv extension even though I think I might have done it wrong. Can any one help?

HOW MUCH DATA SHOULD I GET FOR MY IPHONE

I'm going to buy an iphone 4s with verizon within the next couple weeks, they don't have unlimited internet they have the gbs, i don't really understand how to calculate how much i should get. I use facebook and apps and play games when i get bored… Is 4gb enough or should i get more than that?!

Cellular data network on iPhone?

I turned off the cellular data network option on my iPhone. I'm thinking it means that I can't use the Internet (safari, Facebook, twitter, etc) or receive mms messages and whatnot unless I'm on Wi-Fi. I'm doing this so that my data allowance won't go over.Am I correct about it? And will it keep my data from being
used?

Virgin Mobile iPhone - No Service?

My Virgin Mobile iPhone was working earlier today at school. However, when I got home, there were no bars and the phone said 'No Service' at the top. My last phone was Virgin as well, and occasionally there would be days where my service would disappear but then it would be fine the next day, or later that night. I've tried turning it on and off to no avail. Typically, I get about three or four bars in my house and have fine reception, but today is different. Is it just a tower being obstructed or some other technical issue? Will it cure itself eventually?

I stole from someone locker

I stole from a grade 7, I'm in 8. Its my last year I'm 13 and I never did anything bad so I just stole, I don't want to give it back because It was a Iphone and those things are Amazing like really. Should I give it back I'm mean I didn't get caught cuz all the teachers like me.

Original youtube app got deleted from my iphone?

I know you think its impossible, but when i updated my iphone to ios 6 yesterday it took off my youtube app, and i can't find it. I went and restored to original home screen settings, but i literally can't find it. And the other youtube app sucks.someone please help me

Having problems with my iPhone 4?

Ok iv had my phone for about 2 months now and i can't download any free apps i have alread mad an acount and everything and never downloaded any apps that cost anything does any one know what i can do please help

ITunes says 5.1 is the current firmware for my iPhone 4?

Apparently it is possible to upgrade to iOS 6 on the iPhone 4, however both my iPhone and my iTunes says that 5.1 is the current firmware available.

At first I figured it was because my iTunes was severely out of date, so I updated it to the current version, however it still says the same thing.

I have an iPhone 4 GSM model currently running iOS 5.1.

Any way I can get my iTunes or my iPhone to realize that I can in fact upgrade to iOS 6? (unless I'm greatly misinformed =P)

Thanks in advance

Added (1). I should also mention that I'm jailbroken

Iphone won't sync to itunes, no sim?

So I have an iphone 3g that I've been using an ipod (no sim!), Itunes won't let me sync my iphone to it, because it keeps asking me for my sim. Is there I anything I can do to get rid of this problem? Can I put my own sim card in it just to get past it asking for my sim card without At&t charging me like crazy?