POTS

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August 2010

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Plain old telephone service
Public switched telephone network
Telephony
PSTN
PSTN network topology
Local loop
RJ11, RJ14, RJ25
DTMF
Category 1 cable
Twisted pair
Telephone jack
Echo cancellation
Voice frequency
Balanced line
Tip and ring
Telephone exchange
Telephone line
Dual-tone multi-frequency signaling
Dial tone