UK Telecoms and ICT Index and Links - V

VIDEOCONFERENCING

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, videconferencing, teleconferencing and virtual meetings
Telephone, data and videoconferencing over the Internet
VoIP, Voice over Internet Protocol and Internet telephone calls

features:Conferencing calls, teleconferencing and videoconferencing
Voice and data 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:virtual communities as a business network

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:Virus and malware protection for small businesses

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 a mobile phone abroad - 'roaming'

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.

information sheets:How to choose a business broadband provider
How to choose a business broadband provider
Telephone, data and videoconferencing over the Internet
VoIP, Voice over Internet Protocol and Internet telephone calls

features:Voice and data convergence

related index entries:CTI - Computer Telephony Integration
IP - Internet Protocol
IP TELEPHONY


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 data
What is a server appliance - and why do you need one?

related index entries:NETWORK




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