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OH |
Off Hook |
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OIM |
Operations Interface Module |
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OLEC |
Other Local Exchange Carrier |
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OLNS |
Originating Line Number Screening |
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OLP |
On Line Provisioning |
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OLTS |
Optical Loss Test Set |
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OM |
Operational Measurement |
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OMC |
Optical Multi-Channel |
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OMS |
Olympic Messaging System |
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ONU |
Optical Network Unit |
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OOA |
Out Of Area |
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OOD |
Object Oriented Design |
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OOF |
Out Of Frame |
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OON |
Out Of Network |
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OOS |
Out Of Service |
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OOS |
Out Of Synchronization |
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OOS |
Otm Overhead Signal |
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OOS-AU |
Out Of Synchronization - Autonomous Unit |
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OOS-AUMA |
Out Of Synchronization - Autonomous Unit - manual override |
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OPN |
Outage Performance Monitoring |
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OPS |
Optical Packet Switching |
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OPS/INE |
Operations System/Intelligent Network Element |
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OPX |
Off Premise Extension |
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OQ |
Operator Qualification |
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OR |
Office Regenerator |
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ORB |
Office Repeater Bay |
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OS |
Operations System |
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OSI |
Open system interconnection |
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OSM |
Optical Services Module |
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OSP |
Online Service Provider |
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OSP |
Outside Plant |
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