Patent ID: 9049287
Filing Date: 2015-06-02
Classification: H04M

Abstract:
1. A computer-implemented method for filtering voice calls, comprising: determining, at a private branch exchange (PBX) server, a caller identification (ID) of a voice call received from a first phone system attempting to reach a second phone system, the caller ID being unknown to a user of the second phone system; transmitting a request having the caller ID from the PBX server to a remote phone number resolving server for categorizing the caller ID; receiving a response from the remote phone number resolving server, the response indicating one or more categories associated with the caller ID and one or more confidence scores representing a likelihood that the caller ID belongs to a respective category; and determining, by a processing device of the PBX server, how to handle the voice call in view of the one or more categories and the one or more confidence scores.