How to make a call from Australia to America using a mobile?

This is probably really easy but i can't figure it out. How would i call the American number (312)725-5740 from Australia? Not sure if it matters but i'm with Optus and have an iPhone 4s. Thanks for any help.

p.s the number is for the Star Wars the Old Republic customer service in case your curious.

Why is my iphone acting weird?

Lately iphone 4 has been speeding up songs and skipping back and forth and randomly pulling up voice control, its pretty frusterating, is there any way that i can stop this? I'm not sure if its the earbuds doing this or just the software, i have yet to update it to ios6.1.2 but i'm not sure that will help, i just need help please

How long is the battery life for an Iphone 5?

I know if differs depending on how much you use it/what you use it for but what is, generally, the amount of hours you can use your Iphone5 for? How can I extend this time to last me longer?

Songs not showing up in ITunes library?

I just got a new laptop, and I just downloaded the new ITunes version. My songs from my old laptop are in my iphone, and when I plug it in my new laptop, the songs only show up in the "On this IPhone" aisle and not in my "Music" library. What do I do?

How to connect to a network and also use my laptop as a router simultaniously?

Basically i have a laptop a nexus 7 and an iphone… I want to connect my laptop to a router and then connect nexus and iphone to laptop to use the laptops internet…

i have tried the ADHOC method and it will not let me do it, it won't let me connect to 2 etworks… Any solutions, i know the windows OS will not allow 2 internet connections so i don't need to be told that lol just a solution please, thanks in advanced!

Added (1). I would connect straight to the router with nexus and iphone but its a weak signal and my laptop is very strong so its ideal for it… Its bugging me a little

My laptop won't recognise or install my iphone 4

So I tried to plug my iphone 4 into my laptop to update the software, only when I plugged it in and tried to back it up on iTunes it said "iPhone can't be backed up as the device was disconnected" which it wasn't as my phone was still charging. I then unplugged the device and plugged it back in but this time my laptop didn't even register that my phone was plugged in. So I have borrowed an iPhone cable off my friend and have plugged it in to find that windows said my iPhone couldn't be installed properly so I went to devices and printers and I right clicked on the "Apple mobile device USB driver" and clicked troubleshoot, windows tried to fix it but failed and now is saying "MTP USB Device has a driver problem" and "Hardware changes might not have been detected" can anyone please help me I've been trying to fix the problem for days and I'm getting no where.