Acronym

Description

O&M

Operations and Maintenance

O/W

Orderwire (NOCC)

OA

Office Automation Data

OA

Operator Assisted

OA

Operator Attached (signal)

OA

Order Administration

OA&M

Operations, Administration, and Maintenance

OAM

Once a Month

OAM&P

Operations, Administration, Maintenance and Provisioning

OAS

Organization of American States

OATS

Order Administration Tracking System

OAU

Office Alarm Unit

OBR

Optical Bar Code

OC

Operations Center

OC

Operator Centralization

OCC

Other Common Carrier

OCD

Operations Capability Demonstration

OCL

Operation Control Language

OCLC

Ohio College Library Center

OCLID

Outgoing Called Line Identification

OCR

Optical Character Reading (or Recognition)

OCS

Order Coordination Service

OCU

Office Channel Unit

ODA

Office Data Administration

ODA

Office Documentation Architecture

ODBE

Office Data Base Editor

ODD

Office Dependent Data

ODE

Ordinary Differential Equation

ODEN

Outgoing Data Enable (signal)

OE

Office Equipment

OE

Order Entry

OE/SOTS

Order Entry & Svc Order Tracking System

OECD

Organization for Economic Cooperation and Development

OEIC

Optoelectronic Integrated Circuit

OEM

Original Equipment Manufacturer

OFA

Operations Facility Assignment

OFPP

Office of Federal Procurement Policy (OMB)

OGT

Outgoing Trunk

OHQ

Off-hook Queuing

OHQT

Off-hook Queuing Tone

OIRA

Office of Information and Regulatory Affairs (OMB)

OLTDS

On-Line Testing and Diagnostics Subsystem

OLTM

Optical Line Terminating Multiplexer

OLTP

On-Line Transaction Processing

OM

Operational Measurement(s)

OM

Operational Measurements

OM

Operations and Maintenance

OM HOST

Operational Measurements Host

OMAC

Operations, Maintenance, Administration and Control

OMAP

Operation and Maintenance Application Point

OMAT

Operation Measurement and Analysis Tool

OMB

Office of Management and Budget

OMB

Outgoing Message Buffer

OMF

Operations Material Forecast

OMG

Order Management Group

OML

Outgoing Matching Loss

OMP

Operation and Maintenance Processor

OMR

Optical Mark Reading

OMS

Operating Measurement System

OMS

Operational Measurement System

OMS

Operational Measurements

OMS

Operations Management System

OMS5

5ESS Office Monitoring System (AT&T)

ONA

Open Network Architecture

ONAL

Off Network Access Line

ONI

Operator Number Identification

ONI

Optical Network Interface

ONP

Open Network Provision

ONTC

Office Network and Timing Complex

OOF

Out of Frame

OOMS

Office of Organization and Management Systems

OOS

Out of Service

OOS

Out of Service (circuits, clearing time, tickets)

OP

Originating Party

OPART

Origination Partition

OPART/STS

Originating Partition/Serving Translation Scheme

OPC

Origination Point Code

OPEN

Open Protocol Enhanced Network

OPG

Operations Recovery Group

OPL

Outpulsing Programming Language

OPM

Office of Personnel Management

OPM

Operations per Minute

OPM

Outside Plant Module

OPRT

Operator intercept

OPS

Operations Department

OPS

Order Processing System(s)

OPUS

On-line Promotion Update System

OPX

Off-premises Extension

OR

Operator Released

OR/MS

Operations Research/Management Science

ORB

Office Repeater Bay

ORD

Operating Room Desk

ORD

Operational Readiness Demonstration

ORDVAC

Ordnance Variable Automatic Computer

ORM

Optical Remote Module

ORName

Originator/Recipient Name

ORR

Office Release Record

ORRS

On-line Records and Reporting System

OS

Operating System

OS/MFT

Operating System/Multiprogramming with a Fixed Number of Tasks

OS/MVS

Operating System/Multiprogramming with Virtual Storage

OS/MVT

Operating System/Multiprogramming with a Variable Number of Tasks

OS/VS1

Operating System/Virtual Storage 1

OS/VS2-MVS

Operating System/Virtual Storage 2

OSAC

Operator Speed of Answer Consistency

OSCSTAT

Remote Clock Oscillator Status

OSDS

Operating System for Distributed Switching

OSDS-C

Operating System for Distributed Switching in the AM (Administrative Module)

OSDS-M

Operating System for Distributed Switching in the SM (Switching Module)

OSF

Open Software Foundation

OSHA

Occupational Safety and Health Act

OSI

Open System Interconnection (reference model)

OSM

Oversight System Manager

OSN

Operation Systems Network

OSO

Originating Screening Office

OSP

Operations and Service Processor (Tandem NonStop EXT computer)

OSP

Outside Plant

OSPCAMIS

Outside Plant Construction Activities Management Information System

OSPS

Operator Services Position System

OSR

Out-of-Service Record (database)

OSS

Office Software Summary

OSS

One-Stop Shopping

OSS

Operations Support Services

OSS

Operations Support System

OSS

Operations Systems Support (NOCC)

OSS

Operator Service System

OSSA

Operational Support Systems - Atlanta

OSSC

Operations System Support Center (NOCC)

OSSW

Operational Support Systems - Western

OT

Order Tasks

OTC

Operating Telephone Company

OTDR

Optical Time Domain Reflectometer

OTO

Office to Office

OTP

Office of Telecommunications Policy (Executive Office of the President)

OTR

Operational Trouble Reports

OUTWATS (OUTWT)

Outward Wide Area Telecommunications Service

OWR

Operations Work Request