Operates at the OSI transport and session layers. An application that provides virtual terminal services for a wide variety of remote systems. It allows a user at one site to interact with applications at other sites as if the user's terminal is local. Customer trunks may be outgoing only, incoming only or two-way. WAN - Wide Area Network Remote computer communications system.
WANs typically use common carriers' circuits and networks.
SPAM - No, it's not the handy dandy lunch item originating from the 50's era. All it takes to recieve spam is for your e-mail adress to be made public and added to a list. Spam can include advertisements, hate-mail, or political statements. When chatting or corresponding through e-mail, having all of your letters capitalized is considered yelling. Since most communication on the internet takes place through typed text, it's one of the only ways someone can convey emotion.