unlocking phone? not jailbreaking

[energiesource]

if a phone is locked to a certain carrier, can it be unlocked and put to a different one? say a phone from fido, to rogers?
sorry ifthis has been answered, i didnt find anything except how to jailbreak your phone and i already know how to do that.

anyone?

[461am]

What are we talking here, a 3G or the original iphone?

[energiesource]

a 3g iphone, yes.

[461am]

Currently the only way a 3G iphone can be unlocked is through the simhack method. Read this.

[energiesource]

it seems sketchy?

[461am]

It is sketchy. It is however, the only way right now. You can keep up with news on a software 3G unlock through http://www.blog.iphone-dev.org

[energiesource]

so it doesnt work from us to canadian carriers but if its a canadian to canadian carrier, in the same area, it should work?
and whats this about the sim cars getting stuck?

[461am]

I am not too familiar with the way it works in Canada, but I believe the only carrier it will work on without a simhack is rogers. So if you're trying any other non-rogers affiliated network, it will not work.

This isn't my area of expertise, but I believe the simcard gets stuck because until very recently, you actually had to cut your sim and attach a little chip to it, making it at times, larger than the actual area provided; thus it getting stuck.
edit: apparently it's Rogers and Fido.

[energiesource]

well im with rogers but the phone im going to buy is for fido (another gsm provider here)

[461am]

why not buy it from rogers?

[energiesource]

because i can get a phone thats for fido cheaper than one for rogers, someone is selling one, and rogers is asking $655 for a new one.