l fax machines as well. Fax servers have the ability to archive faxes for record keeping. This also solves the growing problem of faxes getting lost amidst office paperwork. The Telecom Handbook % 203 FAX SERVERS Fax Servers can also support WAP (Wireless Application Pro- cessor) enabled server software SO that fax transmissions can be received on WAP enabled cell phones. There are also a growing number of Internet-based fax applications. For more information on Fax Servers, see Internet and Computer-Based Faxing by Maury Kauffman (order from 1-800-LIBRARY or www.cmpbooks.com). 204 & The Telecom Handbook PART III Telecommunications Transmission and Outside Lines The Telecom Handbook 205 Taylor & Francis Taylor & Francis Group http://taylorandfrancis.com CHAPTER 10 Outside Lines The terms outside lines, circuits and network services all re- fer to the same thing. These are the different types of lines (also called circuits) you may install from the local or long distance telephone companies to connect your organization to the outside world or to your other sites. The lines are brought into your tele- communications equipment room on cables that are terminated and labeled at a point of demarcation on the wall. Circuits To Connect Your Telephone System (PBX or Key System) To The Local And Long Distance Companies A circuit is the physical connection between two communi- cations devices. Some circuits are permanent connections between two points and may be known as fixed, dedicated or point-to- point circuits. These are also sometimes called leased lines. Other circuits are temporary connections and may be called switched circuits since the temporary physical connection between two points is accomplished by a switching system. In order to connect your telephone system to the rest of the world, it is necessary to order outside lines. Here are the types of outside lines you may connect to your telephone system. Combination Trunks (Both Way Trunks) A trunk is one outside telephone line. Since a trunk sounds like somethin