Just updated to 2.2 this morning, so I haven't given it enough time to know if my problem is gone, but I thought I'd throw this out there anyway. About 3 times a week or more, I become unable to place calls on my Droid running 2.1 I use Sype and Google Voice, but not much else that would affect phone calls. The issue comes and goes, and is not related to reception. During the times I am unable to place calls, data and GPS services work perfectly. If I log into Google Voice through a browser and initiate a call, where it calls me first, I receive an incoming call, and can afterward dial out for quite some time. If I have had trouble dialing out, but then receive a call from a friend or customer, then I can call out after that as well (basically any incoming call "fixes" it temporarily). Steps I have taken to diagnose: 1. rebooted repeatedly, including leaving the battery out after shutting off. 2. uninstalled any unneeded applications, especially ones that have access to calls (have since reinstalled GV and Skype) 3. performed updates to Apps whenever available, and checked for system updates. 4. talked to customer service. Short of doing a factory restore, they basically talked me through everything listed above. 5. visited my local Verizon corporate office. If I don't get it resolved by another call to customer service, they will warranty the phone for a refurbished one... their word is that these can be better than new, because the refurbs are more rigorously tested. I'm not so sure. 6. installed OTA Froyo update this morning I'm hoping number 6 does the trick, will update if I still have issues. Really, though, I was just wondering if I was the only one dealing with this specific issue. Everyone at Verizon said they had never heard of it.