1FR One Flat rate residential phone line, basic phone line residential
 
POTS Plain old telephone service – Term for a standard phone line
 
1FB One Flat rate Business phone line, basic business line
 
MEL Market Expansion Line – Local Area Code and Prefix forwarded to a voice mail box or other telephone number in a different area
 
MRC Monthly Reoccurring Charge – Such as the monthly service fee
 
NRC Non Reoccurring Charge – One time fee, such as set up or installation fee, or activation fee
 
ILEC Incumbent Local Exchange Carrier – Typically the baby bell or local phone company providing service in Feb 1996 when the Telecommunications Act of 1996 was enacted
 
CLEC Competitive Local Exchange Carrier – A provider that competes with the local phone company or ILEC
 
RBOC Regional Bell Operating Company
 
Dmarc Demarcation Point – The physical point where the public network ends and the private network of a customer begins
 
DSL Digital Subscriber Line – High Speed internet over the standard copper phone line.
 
ISDN Integrated Service Digital Network. Older but very solid technology that requires electricity and runs over phone lines. Supports 128k via two 64k channels
 
BRI Basic Rate Interface consist of two 64k channels, one D channel
 
PRI Primary Rate Interface generally transmitted through a T-1 line. Includes 23 B-Channels and one D-Channel.
 
T1 A dedicated phone connection supporting voice and data with rates of 1.544 mbits per second, and broken into 24 individual channels.
 
Fractional T1 A portion of a T1. Many providers will allow a client to purchase a portion of a T1 instead of buying the entire 24 channels
 
SLA Service Level Agreement – This clause in an agreement stipulates the commitment of the provider to a minimum level of service and the remedy or penalty of not met.
 
VOIP Voice over Internet Protocol – Telephone calls over the internet by sending voice data in packets using internet versus standard phone lines or POTS.
 
Local Loop The connection between a telecommunication company’s central office to the lines in the subscriber’s location. Commonly referred to as the “last mile”
 
CO Short for Central Office. The centralized office or building where the phone service main switches and equipment are located for a specific local area.
 
ATM Asynchronous Transfer Mode. This is a technology based on compact data in cells or “packets” that allows for the video, audio, or data to be transmit over the same network, and eases bandwidth congestion issues. These are often large data networks providers use to transfer traffic.

Contact Technology Advocacy Group

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