1. A system for implementing a collaborative phone reputation system, the system comprising: a compute device comprising: a call handling module to detect, at the compute device, an incoming call for a user of the compute device; a scoring module to determine a local probabilistic score that the incoming call is desirable for the user; and an execution module to perform an action at the compute device based on the local probabilistic score, wherein to determine the local probabilistic score, the scoring module is to: determine that the incoming call is from a party not in a contact list of the user; and decrease the local probabilistic score based on the determination that the incoming call is from the party not in the contact list, and wherein the incoming call includes an originating phone number, and wherein the scoring module is to: obtain a reputation score of the originating phone number; and modify the local probabilistic score based on the reputation score.