How to block a number on your landline phone and reduce the amount of spam calls you receive

Business Insider

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· *There are several steps you can take to block a number on a landline phone and reduce the amount of spam calls you receive.*
· *You can purchase a physical call-blocking device and install it onto your landline's connection, which will let you block a specific number.*
· *Make sure to add your number to the National...

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