How do you dial a USA 1800 number from Australia?

I need people in australia to be able to call my call center here in the usa for free. My phone lines can recieve and make calls to australia no problem. The problem is it has to be free for my customer in australia.

How do I call a 1800 number from NZ to Australia?

Like what code do i need to dail before the 1800...

A good friend of mine is in Oz visiting and I have his USA number. If I call it, will it still get to him? i'm not sure how to contact him. x

I am looking at going on holidays to Los Angeles and am wanting an iPhone 3gs, but over here in Australia they are around $1000 AUD which is too expensive for me to spend on an iPhone. But then i saw in the apple store US had the iphone 3gs for only...

What does one dial (besides 1 + area code + number) in order to call from USA to Australia (and vice versa)? And is texting from an USA number to an Australian number the same as calling? Or do one has to mark special number/code/whatever to do that...

Because of my job and the project im taking care of, i have to contact a lot of companies in Australia from the construction field. I got a list from the Yellow pages from Aus. I am calling from Spain so i have to dial the 00 (61- which is the international...

Ok so on the 16th of february in the morning i sent a parcel to a friend in the USA using AUSPost's fastest 2-4day international parcel service. Ive been tracking it, on the 16th it did all this: Label/Receipt Number: EE*********AU Class: Express Mail...

okay, so my friend and I have been trying to figure out for some time how to call internationally from USA (where he lives) to Australia (where i live) or Viceversa. we have tried every code we have found on google, but none of them seem to be working...