I've also noticed that Google Voice, despite its awesome feature set, is just not very reliable. I absolutely prefer to use it as my primary phone number, but

I've also noticed that Google Voice, despite its awesome feature set, is just not very reliable. I absolutely prefer to use it as my primary phone number, but I've noticed repeated problems with just using the service, a good deal of the time. Outbound calls (from my phone) that use the Google Voice service often times just don't connect. Inbound calls often don't ring my phone, and go straight to voice mail. I've never noticed an SMS message fail altogether, but I have seen a number of occasions in which it was delayed so significantly that it might as well have. Perhaps the most important glitch to me (and this isn't a service complaint, so much) is that MMS messages are just ignored. I don't receive them, or any notification that one was sent, and from what I can tell, there is no message / delivery failure sent to the sender either. This is a problem for me. Despite all these problems, I still LIKE Google Voice, and continue to use it, despite its unreliability. If I'm dealing with time-sensitive matters or financially sensitive ones, I just give out my non-IP phone number, to ensure that I at least get the calls, but my main want for Google Voice is to replace my regular number, so that I can change phones & carriers at will, that doesn't really sit well either.