Acronym Guide - O

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O2E - Optical to Ethernet

OAM - Operations, Administration and Maintenance

OAM&P - Operations, Administration, Maintenance and Provisioning

OB&C - Other Billing and Collecting

OBF - Ordering and Billing Forum

OBI - Omnibus Broadband Initiative

OC - Optical Carrier

OC - Optical Channel

OC&C - Other Charges and Credits

OC1 - Optical Carrier Level 1

OC3 - Optical Carrier Level 3

OC12 - Optical Carrier Level 12

OC48 - Optical Carrier Level 48

OC192 - Optical Carrier Level 192

OC768 - Optical Carrier Level 768

OCC - Other Common Carrier

OCN - Operating Company Number

OCP - Optional Calling Plan

ODF - Optical Distribution Frame

ODU - Optical Data Unit

OFF - Optional Features and Functions

OGC - Office of General Counsel of the FCC

OI - Office Indicator

OIG - Office of Inspector General of the FCC

OLS - Originating Line Screening

OLT - Optical Line Termination

OMB - Federal Government’s Office of Management and Budget

OMD - Office of Managing Director of the FCC

ONA - Open Network Architecture

ONAL - Off Network Access Line

ONP - Optical Network Platform

ONT - Optical Network Termination

ONU - Optical Network Unit

OPASTCO - Organization for the Promotion and Advancement of Small Telecommunications Companies

OPC - Originating Point Code

OPEX - Operating Expense

OPX - Off Premise Extension

OSP - Outside Plant

OSP - Operator Services Position System

OSP - Operator Service Provider

OSPF - Open Shortest Path First

OSS - Operational Services System

OSS - Operational Support System

OT - Office Type Code

OTH - Optical Transport Hierarchy

OTN - Optical Transport Network