Unless you've managed to wrangle your way into a new device from Verizon, you've no doubt been dealing with some bugs on your Samsung Fascinate. The previously mentioned ED05 update that fixes the incoming call and various other bugs is now available for download through system updates. Still, it may worthwhile to give Verizon a call and see about getting a refurbished Droid X2, Incredible 2 or Droid Charge. Unless you're quite fond of your Samsung Fascinate -- in which case, you should just grab the update.
Source: Verizon; Thanks, Herb!