Google on Tuesday released an updated version of its Phone app for Android with a new spam protection feature that warns users when an incoming call is likely to be spam. It also lets them block numbers and report spam. The app is available on Google Play. The spam warning feature works on Nexus and AndroidOne devices on the T-Mobile USA, Project Fi and Orange France networks. "For me, mobile spam calls are a nightmare," remarked Rob Enderle, principal analyst at the Enderle Group.