Sometimes speaking “tech” is like speaking an entirely different language.  Let us clear up some of the possible confusion for you!  Here are some of the most commonly used abbreviations and acronyms in the telecommunications industry:


BTN – Business Telephone Number, the main telephone number on a customer’s account.

CSR – Customer Service Record, a comprehensive and detailed report of a customer’s phone account

DID – Direct Inward Dial, a digital phone number that rings directly to a specific user

DMARC – Demarcation point, the termination or interface location of network facilities at a customer’s location

FCC – Federal Communications Commission, an agency of the government that is responsible for the regulation of interstate communication services

IP – Internet Protocol, the standard signaling method used for all internet communications

LEC – Local Exchange Carrier, the local telephone company that provides the customer’s phone service

MMS – Multimedia Messaging Service, a cellular text message that also contains pictures or videos

PIC – Primary Interexchange Carrier, the defaulted long distance provider through which all calls from a subscriber line are routed

POTS – Plain Old Telephone Service, analog telephone signal that delivers voice services through copper lines

PRI – Primary Rate Interface, 23 channels able to carry digital voice and data services

PUC – Public Utilities Commission, public utility owned and operated by a municipal or local government, under the oversight of local elected officials

RCF – Remote Call Forward, a phone number that always forwards to another number

SIP – Session Initiation Protocol, a signal protocol commonly used for controlling internet telephony for voice

SMS – Standard Messaging Service, a text message sent through cell phones that contains only text characters

VoIP – Voice Over Internet Protocol, communications services that are transmitted over the internet, rather than an analog public telephone network