Donating to GVGW ( https://news.ycombinator.com/item?id=6524728 ) to use the GSM codec combined with csipsimple ( http://code.google.com/p/csipsimple/ ) has actually been surprisingly usable over HSPA+.

First link wrong? Seems like a useful service.

https://simonics.com/gvgw/

That's the one! I don't know how I missed that...

I use my phone quite a bit due to having a widely dispersed family and an upcoming wedding. I also occasionally use my phone for work, but do not get reimbursed for the cost. You have this plan? Do they do the "nights and weekends free" thing? Do they charge for "in network" calls?

I'm actually seriously thinking about switching, as my Net10 experience is sub-par compared to an actual carrier, and $30/mo is better than $45/mo no matter how you split it. 100 minutes is just too low for me, though. I love my Windows Phone, but that means no Google Voice or realistic VOIP offering.

I've had this plan for a bit over a year. No nights and weekends free. I don't even think there is free in network calling, but I'm not sure.

It's really not a good plan if you use a lot of minutes, but for people like me, it's great.