Source:
"알아봅시다: 전력선 통신(PLC)", 디지털타임스. 2008. 9. 25. 
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Power line communication (PLC), also known as
power line carrier, mains communication, power line telecom (PLT), or
power line networking (PLN), is a system for carrying data on a conductor also used for electric power transmission.
Broadband over Power Lines (BPL) uses PLC by sending and receiving radio signals over power lines to provide access to the Internet.
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Automatic meter reading, or
AMR, is the technology of automatically collecting data from water meter or energy metering devices (water, gas, electric) and transferring that data to a central database for billing and/or analyzing. This saves employee trips, and means that billing can be based on actual consumption rather than on an estimate based on previous consumption, giving customers better control of their use of electric energy, gas usage, or water consumption. AMR technologies include handheld, mobile and network technologies based on telephony platforms (wired and wireless), radio frequency (RF), or powerline transmission.

Newer retrofit US domestic digital single-phase smart meter (Elster REX type R15) with 900MHz mesh network topology for AMR
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Comments
표에 삼성와이즈070이 빠져 있네요.
올해 초에 회사 정리하면서,
회사에서 사용하던 삼성와이즈070 오피스 명의 이전해서 가지고 왔는데,
예전에 사용하던 MYLG070 보다 웹에서 통화 관련 로그 확인 측면에서
훨씬 더 뛰어나다고 생각합니다.
Wyz070도 이벤트하는 것을 본 적은 있습니다. 시장 점유율이 어떤지 모르겠네요. 좋은 정보 감사합니다.