Free SIP Calling with Google Voice (sans Gizmo5)

Let me start by saying this tutorial does not use Gizmo5, since they no longer are accepting signups (gee, thanks Google) I was looking for a way to make this work without using their service. When you’re done, this will allow you to make  calls via your computer, iPad, iPhone, and iPod touch (2nd gen and newer) to any number using your Google Voice number, all for free.

For starters you’ll need a Google Voice number, if you don’t have one, post your email address in the comments and we’ll do our best to hook you up (I have 5 invites currently available).

This tutorial is rather long and some might find it overly complicated, so consider yourself warned. What I’ve outlined here is the free way of doing things, but if you purchase iPhone software like Acrobits Softphone [$7.99] you’ll get a much better user experience.
Continue reading Free SIP Calling with Google Voice (sans Gizmo5)