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Home > Products > TruFax® > White Papers Product InformationBrooktrout TruFax®White PapersHow Many Phone Lines Does Your Fax Server Need? PDF April, 2003 - One of the most difficult assessments IT buyers must make when buying a fax server is how many fax server phone lines to install. Although some rough industry guidelines exist-anywhere from seven to 25 fax users per phone line-they may be either ill-suited or just too vague to be applied successfully to some specific fax server installations. Ultimately, this becomes a decision that hinges on the specifics of each fax server installation. In most cases, VARs, systems integrators or fax server vendors will analyze the factors at work relative to specific installations and then make their best recommendations, buyers are still advised to understand and scrutinize fax server sizing dynamics to make an informed decision. This paper will outline considerations to take into account when determining fax server line capacity. Topics include: how to estimate how much existing and new fax traffic a fax server must support, how to factor in peak hour requirements, transmission rates and compression methods of various types of boards, special considerations relative to receiving faxes, and consequence of too many or too few phone lines. PDF Why Intelligent Fax Boards are the Smart Choice PDF March, 2003 - A myth exists that all fax boards and fax modems are essentially the same. If they all send and receive at relatively the same speed, then all fax phone bills are the same and what else could matter? But fax technology can be surprising: for example, intelligent fax boards can send at 2 to 3 times the speed of most Class 1 and 2 modems. To add to this, even by sending at the same speed of 14.4 Kbps, Class 1 and 2 fax modems typically triple page transmission time compared to intelligent fax board throughput! Three distinct types of fax cards exist: Class 1 fax
modems, Class 2 fax modems, and intelligent fax boards, and each
provides substantially different levels of performance. In the mid-volume
(approximately, 70 four page faxes) scenario presented in this white
paper, intelligent fax boards are shown to reduce life-of-system
fax phone bills by as much as $5,900 over Class 1 and 2 modems.
The reasons why intelligent fax boards provide superior performance
may be obscure—including Modified Modified Read compression,
signal-to-noise ratios, critical timing issues, call progress capabilities
and bit-stuffing, which will be explained later—but they are
no less real to the bottom line for being esoteric.
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