Facetime on Mac computer randomly stopped working?

I was FaceTiming my friend on my Mac OS X and he was on his iPhone, and randomly my microphone stopped working. I could still hear him. But he couldn't hear me anymore. I don't know how to fix it and my friend says his phone volume is up and i don't know.

Do they sell iphones in Cricket now?

I also want to know the price for it if they sell it there, the iphone4 8gb
or iphone 3 and When will the iphone 5 come out so the price for iphone 4 will go down

How much money for an iphone repair?

My mom just broke her iphone 3gs and I tried to look up how to fix it. I found nothing. She cracked the screen… Just the screen. How much would it cost for a repair… A good one.

Will the iPhone 4s 16gb be enough for me?

Just got the iPhone 4s 16gb and not sure if it was the right choice, I'm mainly gonna be using it for pictures like instagram Facebook email a couple games maybe 10 and put about 50 songs or less. I don't know if I made the right choice don't wanna be worrying about my memory

How to unlock a Verizon IPhone 4s 16gb?

I lost my iPod 4g 8gb and someone is selling a brand new IPhone 4s 16gb for the same price as a new iPod so what do I do to use the apps, music, safari on my Wi-Fi without getting service?

Things you wish you could control with your iPhone?

I'm taking a computer course program thing over the summer so that I can have an extra credit in 12th grade. We have to think of things that we should be able to control using our phones. Things like lights and stuff but I'm completely stuck. Any help?

Things about kik messenger?

On your iphone on kik messenger cause you save pictures that you get sent to your photo library on your phone? Or do you know if you can open them like a normal pic as you would on an iPhone?

How to put backed-up data from iTunes back onto restored iPhone?

Alright, so I got my iPhone jailbroken and I didn't like it so I restored my phone. Before I did, I backed up the data and it's in iTunes under 'Edit>Preferences>Devices'.So now I want to get all that data onto my Phone again but I don't know how. How can I do this to make my phone exactly how it was before the jailbreaking?

IPhone and android Bluetooth?

Can my boyfriend use his android to spy on my iPhone? I think he is using something that uses blue tooth. My phone logs are very shady when together. The other night I shut off all data and Wi-Fi and logs said snow leopard? MIS? Firmware uploads? And so much more.