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Jargon Buster
The du Pré Jargon Buster found the following for - ONos 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 Z
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Term
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Explanation
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| OBS | A BT term. Obsolescent product | |
| Octet | The telecommunication term for a Byte | |
| OFTEL | The Office of Telecommunications. The government’s telecommunications watchdog | |
| ohm | A measurement of electrical resistance. Pronounced as ‘home’ without the ‘h’. The ohm symbol is O | |
| OLO | A BT term. Other Licenced Operator. Any organisation which is licenced to sell carrier pre-selection. | |
| On-line | Current information which can be updated as you view | |
| OOA | A BT term. Out Of Area | |
| Operating System | Software which instructs hardware how to organise and co-ordinate its functions | |
| Optic Fibre cable | A cable made from glass threads. Voice and/or data is converted into pulsed light which travels in the glass at approximately 0.7 times the speed of light | |
| OptionLink | A BT term. Associted with BT's Advanced Features. Easy method of changing call plans ensures that call answering is maximised plans can be changed virtually immediately enables emergency contingencies to be activated change is activated by a Freefone call. | |
| OPX | Off-Premise Extension. A BT term | |
| OSI | Open Systems Interconnect. The agreed International Standards by which systems should communicate. OSI is formed by the ISO. For telephony, 7 layers are agreed for the interworking of computers, terminals and applications | |
| OSI Reference Model | A model being used to promote the intercommunication of dissimilar computer systems within the ISDN | |
| OSPF | Open Shortest Path First. A routing protocol used within larger networks in preference to RIP. A host that detects a change in the network immediately sends the information to all other hosts in the network so that all will have the same routing information. Unlike RIP, only the part that has changed is sent, and only when the network is changed. Since many networks using RIP are already in use, router manufacturers tend to include RIP support within a router designed primarily for OSPF | |
| OTA | A cellular radio term. Over The Air | |
| Outdialling | Dialling from one piece of equipment to another. Typically, from a telephone system to a PTO, or from a LAN to a PTO | |
| Outlet | A single connection point, always female. A male plug connects into a female outlet. A socket may have one or more outlets. Hence, a socket with two outlets is called a double outlet |