It doesn't let me give 0 stars – Grandstream Wave Lite Review

I've only been able to make one phone call using this app, it is pure crap… It always gives me the error 404 not found. I'm not sure what's wrong with it, but I wouldn't mind paying for the app if it actually worked… I guess since it's free, I'm getting what I paid for it...
Review by K-ou on Grandstream Wave Lite.