UK Telecoms and ICT Index and Links - V
- VIDEOCONFERENCING
- VIDEOPHONE
- VIRTUAL COMMUNITY
- VIRUS
- VOICEMAIL
- VoIP - Voice over Internet Protocol
- VPN - Virtual Private Network
| external links: | CU-SeeMe CU-SeeMe is videoconferencing software owned now by Radvision (incorporating First Virtual Communications, CuSeeMe Networks and White Pine Software) and created in 1993 by Cornell University. PictureTel Now Polycom ProShare |
| information sheets: | Internet Presentations and Meetings Telephone, data and videoconferencing over the Internet VoIP, Voice over Internet Protocol and Internet telephony |
| features: | Breaking the boundaries: using teleconferencing to communicate faster and better The practical applications of convergence |
| related index entries: | TELECONFERENCING |
VIDEOPHONE
A specially adapted or designed telephone which enables the called and calling parties to see each other during a call.
VIRTUAL COMMUNITY
A virtual community uses Internet technology to share information, ideas and resources among a group of like-minded participants located anywhere in the world.
| external links: | eGroups now Yahoo Groups Liszt Now branded as 'Topica' |
| information sheets: | Using the Internet as a virtual community |
| related index entries: | DISCUSSION FORUM MAILING LIST NETIQUETTE NEWSGROUP |
VIRUS
A program which is unauthorised by the network administrator, which can spread covertly from computer to computer and which can cause annoyance or damage, steal or destroy data, programs and operating systems.
| external links: | Anti-virus comparative review Compares anti-virus software Current virus hoaxes |
| information sheets: | How to avoid catching a virus |
| related index entries: | SECURITY |
VOICEMAIL
A network-based telephone answering and messaging service for each extension on a network. On most systems messages can be retrieved from any telephone by dialing a specified telephone number.
| external links: | Digital Mail fax, phone and email messaging services |
| features: | Using your mobile phone abroad |
| related index entries: | CALL MANAGEMENT |
VoIP - Voice over Internet Protocol
Shorthand for using the ubiquitous Internet Protocol (but not necessarily the Internet) to make voice telephone calls. Voice calls are carried as data packets over a combined voice and data network which can be a managed LAN or WAN or less reliably over the contended Internet. To between a VoIP network and the standard public switched telephone network a 'gateway' is required.
VPN - Virtual Private Network
A private network provided over the shared public network infrastructure, rather than via a dedicated link. Used to make inter-site connections for voice or data in the same way as leased lines.
| external links: | Equiinet Equiinet supply server appliances which make Internet connectivity, the administration of security and control of users easier for non-technical business managers. |
| information sheets: | How to choose a business broadband provider Storing and transferring your data What is a server appliance - and why do you need one? |
| related index entries: | NETWORK |
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