A couple of days ago I received my invitation to sign up for Google Voice and did. I downloaded the Google Voice app from Android Market and installed it. I've yet to be able to successfully place a call using Google Voice (the call ends immediately), but calls go through when not using it. Another issue I'm facing is the call log and caller ID (phone number, etc.) show only "Unknown" for all incoming and outgoing calls, even for people in my Contacts. I have uninstalled GV a couple of times, but the call log and phone numbers still don't show up, whether or not GV is installed. The only thing I can use is my contacts to dial their numbers. What's going on, and how do I fix it?