4 CCR 723-2, GLOSSARY OF ACRONYMS - GLOSSARY OF ACRONYMS

ABS	Alternate Billing Service
ALI	Automatic Location Identification
AMA	Automatic Message Accounting
AML	Actual Measured Loss
ANI	Automatic Number Identification
ANSI	American National Standards Institute
BER	Bit Error Rate
BESP	Basic Emergency Service Provider
BRI	Basic Rate Interface
BSA	Basic Serving Arrangement
BSE	Basic Service Element
CASB	Cost Accounting Standards Board
CCR	Code of Colorado Regulations
CEI	Comparably Efficient Interconnection
CFR	Code of Federal Regulations
CLASS	Custom Local Area Signaling System
CLEC	Competitive Local Exchange Carrier
CMRS	Commercial Mobile Radio Service
CNS	Complementary Network Service
CPCN	Certificate of Public Convenience and Necessity
CPNI	Customer Proprietary Network Information
CRCP	Colorado Rules of Civil Procedure
CRS	Colorado Revised Statutes
CSR	Customer Service Record dB Decibel
DMS	Data Management System
DS0,DS1,DS3	Digital Signaling levels 0, 1 and 3
E9-1-1	Enhanced 911
e-mail	Electronic mail
ENS	Emergency Notification Service
EP	Eligible Provider
ESP	Enhanced Service Provider
ETC	Eligible Telecommunications Carrier
ETS	Emergency Telephone Service
FCC	Federal Communications Commission
FDC	Fully Distributed Cost
FOC	Firm Order Confirmation
GAAP	Generally Accepted Accounting Principles
HCSM	High Cost Support Mechanism
Hz	Hertz
ICB	Individual Case Basis
IPCS	Incarcerated People's Communication Services
IEEE	Institute of Electrical and Electronics Engineers
ILEC	Incumbent Local Exchange Carrier
ISDN	Integrated Services Digital Network kbit/sec kilobit per second (1,000 bits per second)
LATA	Local Access Transport Area
LCA	Local Calling Area
LEC	Local Exchange Carrier
LIDB	Line Identification Database
LLC	Limited Liability Company
LNP	Local Number Portability
LOR	Letter of Registration
LRIC	Long Run Incremental Cost
LSR	Local Service Request
ma	milliamps
Mbps	Megabits per second
MLTS	Multi-line Telephone System
MSA	Metropolitan Statistical Area
MSAG	Master Street Address Guide
MTB	Minimum Transport Bandwidth
MTE	Multi-Tenant Environment
NANP	North American Numbering Plan
NANPA	North American Numbering Plan Administrator
NECA	National Exchange Carrier Association
NENA	National Emergency Number Association
NID	Network Interface Device
NIIF	Network Interconnection Interoperability Forum
NPA	Numbering Plan Area
NPAC	Number Portability Administration Center
OC1	Optical Carrier-Level 1 Signal
ONA	Open Network Architecture
OSS	Operational Support Systems
PCS	Personal Communications Service
PIN	Personal Account Identification Number
POLR	Provider of Last Resort
PRI	Primary Rate Interface
PSAP	Public Safety Answering Point
RBOC	Regional Bell Operating Company
RTEZ	Rural Technology Enterprise Zone
RTF	Rich Text Format
RUS	Rural Utility Service
SCP	Service Control Point
SGAT	Statement of Generally Available Terms and Conditions
SLU	Subscriber Line Usage
SS7	Signaling System #7
STP	Signal Transfer Point
TDD	Telecommunications Device for the Deaf
TRS	Telecommunications Relay Services
TSLRIC	Total Service Long Run Incremental Cost
UCA	Office of Consumer Advocate
UNE	Unbundled Network Element
USF	Universal Service Fund
USOA	Uniform System of Accounts
WATS	Wide Area Telephone Service

Notes

4 CCR 723-2, GLOSSARY OF ACRONYMS

39 CR 21, November 10, 2016, effective 12/1/2016 40 CR 15, August 10, 2017, effective 9/1/2017 41 CR 03, February 10, 2018, effective 3/2/2018 42 CR 02, January 25, 2019, effective 2/14/2019 42 CR 07, April 10, 2019, effective 4/30/2019 43 CR 02, January 25, 2020, effective 2/14/2020 43 CR 17, September 10, 2020, effective 8/17/2020 44 CR 17, September 10, 2021, effective 8/11/2021 44 CR 18, September 25, 2021, effective 10/15/2021 45 CR 03, February 10, 2022, effective 12/29/2021 45 CR 01, January 10, 2022, effective 1/30/2022 46 CR 05, March 10, 2023, effective 3/30/2023 47 CR 23, December 10, 2024, effective 12/30/2024