| \\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias // 1 A B C D E F G H I J K L M N O P Q R S T U V W X Y All words | |
| O&M | Operation and Maintenance |
|---|---|
| OA&M | Operation, Administration and Maintenace |
| OA | Operator Assistance |
| OACSU | Off-air Call Setup (GSM) |
| OADM | Optical Add-Drop Multiplexer |
| OAI | Open Access Interconnection |
| OAM&P | Operation, Administration, Maintenance & Provisioning |
| OAM&P | Operation, Administration, Maintenance and Provisioning |
| OAM | Operation, Administration and Maintenance |
| OANAD | Open Access Network Architecture Development |
| OBF | Ordering & Billing Form |
| OBO | Output Back Off |
| OBP | On Bord Processing |
| OC&C | Other Charges & Credits |
| OC-NMS | HP OpenCall Network Media Server. Plays the role of IVR in the HP/Sicap PrePaid IN solution |
| OC-SAC | HP OpenCall Service Access Controller |
| OC3 | Optical Carrier 3 |
| OC | Operating Company |
| OC | Operation Code |
| OC | Optical Carrier (SONET) |
| OCAL | Opencall Layer (HP) |
| OCC | Other Common Carrier(s) |
| OCC | Outgoing Call Control service |
| OCCA | Open, Cooperative Computing Architecture |
| OCCI | Oracle C++ Call Interface (Database) |
| OCI | Oracle Call Interface (Database) |
| OCMC | Opencall Multiservice Controller |
| OCMP-BRE | OCMP Browser Runtime Environment (HP) |
| OCMP-BRE | OpenCall Media Platform Browser Runtime Environment (HP) |
| OCMP | OpenCall Media Platform (HP) |
| OCP | Optional Calling Plan |
| OCPD | Over Current Protection Device |
| OCR | Optical Character Recognition |
| OCSAC | OpenCall Service Access Controller |
| OCSC | OpenCall Service Controller |
| OCU | Office Channel Unit |
| OCUDP | Office Channel Unit Data Port |
| ODA | Open Document Architecture |
| ODBC | Open Data Base Connectivity |
| ODBC | Open Database Connectivity |
| ODI | Open Data-link Interface (Novell) |
| ODIF | Open Document Interchange Format |
| OE | Office Equipment |
| OE | Originating Equipment |
| OEM | Original Equipment Manafacturer |
| OEM | Original Equipment Manufacturer |
| OEO | Optical-Electrical-Optical |
| OFA | Optical Fiber Amplifier |
| OFDM | Orthogonal Frequency Division Multiplexing |
| OHD | Off-Hook Delay trigger |
| OID | OAM Object Identifier |
| OID | Object Identifier |
| OID | Oracle Internet Directory (Database) |
| OIM | Operations Interface Module |
| OLAP | Online Application Processing (Database) |
| OLC | Optical Loop Carrier |
| OLE | Object Linking and Embedding |
| OLNS | Originating Line Number Screening |
| OLP | On-Line Provisioning |
| OLTM | Optical Line Termination Multiplexer |
| OLTP | OnLine Transaction Processing |
| OLTP | Online Transaction Processing (Database) |
| OM | Operational Measurement |
| OMAP | Operations & Maintenance Application Part |
| OMAP | Operations, Maintenance, and Administration Part (SS7) |
| OMC-R | The radio OMC |
| OMC-S | The switching OMC |
| OMC | Operations and Maintenance Center |
| OML | Operation and Maintenance Link (GSM) |
| ONA | Open Network Architecture |
| ONA | Order Number Administration |
| ONC | Open Network Computing |
| ONI | Operator Number Identification |
| ONMS | Open Network Management System |
| ONP | Optical Network Planner (Cisco) |
| ONU | Optical Network Unit |
| OO | Object-Oriented |
| OOD | Object Oriented Design |
| OODBMS | Object Oriented DabaBase Management System |
| OOF | Out Of Frame |
| OOP | Object-Oriented Programming |
| OOPS | Object-Oriented Programming System |
| OOS | Out Of Service |
| OOS | Out Of Synchronization |
| OPC | Origination Point Code (SS7) |
| OPI | Open Peripheral Interface (Cisco) |
| OPN | Outage Performance Monitoring |
| OPS/INE | Operations System/Intelligent Network Element |
| OPS | Oracle Parallel Server |
| OPT | Cisco's Open Packet Telephony architecture |
| OPX | Off Premise Extension |
| OR | Office Regenerator |
| ORB | Office Repeater Bay |
| ORCA | Option ROM Configuration for Arrays |
| ORCA | Option ROM Configuration for Arrays (HP) |
| ORM | Optically Remote switching Module |
| ORT | Operational Readiness Testing |
| OS | Operating System |
| OSA | Open System Architecture |
| OSF | Open Software Foundation |
| OSI/CS | OSI/Communications Subsystem |
| OSI/FS | OSI/File Services |
| OSI/NMF | OSI/Network Management Forum |
| OSI | Open Systems Interconnection |
| OSI | Open Systems Interconnection (ISO, ITU-T) |
| OSINET | OSI Network |
| OSIRM | Open Systems Interconnection Reference Model (ISO, ITU-T) |
| OSLP | Operational Service logic Program |
| OSO | Originating Screening Office |
| OSO | Origination Screening Office |
| OSP | Operator Service Provider |
| OSP | OutSide Plant |
| OSPF | Open Shortest Path First (IETF) |
| OSS | Operation(s)/Operational Support System |
| OSS | Operational Support Systems |
| OSS | Operator Services System |
| OTA | Over The Air |
| OTA | Over The Air (GSM - UMTS) |
| OTDR | Optical Time Domain Reflectometer |
| OTF | Open Token Foundation |
| OTGR | Operations Technology Generic Requirement |
| OTIS | Optical Transport Interconnection Service |
| OU | Organizational Unit |
| OUI | Organizationally Unique Identifier (SNAP) |
| OV | Overload |
| OVD | Outside Vapor Deposition |
| OVw | OpenView Windows |
| SMBZ - SaMBoZaur - test for propagation of define:
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