Plain old telephone service (POTS),

Definition of Plain old telephone service (POTS):

1. Standard land-line, twisted-pair copper wire, dial-up telephone service provided to homes and business for basic communications, without features such as call waiting, call forwarding, caller ID, ISDN, etc. From the telephone companys point of presence (POP) up to the telephone exchange it is an analog service (with a bandwidth of 56-64 kilobits per second or kbps) and very high speed digital (usually fiber-optic) lines between exchanges and networks.