Common Telephony Terms - Vol Four (L and M)
This Technically U video contains various telephony and telecom definitions. Covering Latency, Leased Lines, Letter of Authorization (LOA), Local Access and Transport (LATA), Local Loop, Local Number Portability (LNP), Local Exchange Carrier (LEC), Local Exchange Routing Guide (LERG), Long Distance Service, Loop Start Calling, Main Distribution Frame (MDF) and Mean Opinion Score (MOS).