"Telezappers" are small devices on the market today that claim to have the ability to fool automated calling equipment into thinking you are a disconnected number and you will automatically be removed from the calling database.

This may be true with some systems, but not with MarkeTel Predictive Dialers. These "Telezappers" rely on special tones sent over the phone line to indicate a disconnected number. MarkeTel Predictive dialers do not use this "tone detection" method of determining call progress, therefore all MarkeTel predictive dialers are immune to these devices, and always have been!