epage, for me the problem appears to be with voice.google.com/m. From the main website I can place calls without any issues, but from the mobile version I'm not getting anything (and I noticed that Dialcentral seemed to be using the mobile version). I get the same problem whether using my mobile number or gizmo. I just tried them back-to-back from then900's browser and verified that (for me at least) the normal gvoice site is fine, mobile isn't.