Using SIP to Block Robocalling: On the Telephone, Nobody Knows You're a Robot
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by 
Mark Lindsey
Mark Lindsey
Robocalling, enabled by VoIP, causes real social harm Filtering based on Caller ID brings some temporary relief The telecom industry has real work ahead to protect Caller ID with STIR VoIP Drove down the cost of making phone calls. We love that about VoIP: free long distance! In the telecom industry now, the idea that calls within a country would cost a retail user more than local calls seems...