VPN (Virtual Private Network)
An introduction to VPN software, hardware and protocol solutions
The Virtual Private Network VPN has attracted the attention of many organizations looking to both expand their networking capabilities and reduce their costs.
IP Telephony is also known as Voice over IP or Internet Telephony and it represents the technology which uses IP-based data networks to transmit telephone calls.
is a standard developed by a group of electronics manufacturers that allows any
sort of electronic equipment -- from computers and cell
phones to keyboards and headphones -- to make its own connections,
without wires, cables or any direct action.