Plain old telephone service, or POTS, is the standard telephone service that remains the basic form of residential and small business telephone service nearly everywhere in the world, and was the only basic telephone service known to most people until the introduction of mobile phones.
Plain old telephone service is the standard telephone service. POTS, is the standard telephone service. This standard telephone service remains the basic form of residential and small business telephone service nearly everywhere in the world. This standard telephone service was the only basic telephone service. This only basic telephone service was known to most people until the introduction of mobile phones.