Unwanted Robocalls : Challenges and Solutions

Robocalls are automated voice messages sent over a telephone network. They can be useful in order to deliver people important information such as warnings of natural disasters and traffic accidents, or appointment reminders. Nevertheless, unwanted robocalls are currently a growing issue. They are annoying and may also be potentially dangerous as some of them aim to steal identities or other sensitive data such as credit card numbers. This whitepaper presents current technical solutions, opportunities and challenges in protecting the customers more efficiently against the fraudulent calls.