GateWay Fax Systems, inc.

SIPSIP is an acronym for Session Initiated Proto- col and refers to a widely used commercial pro- tocol for multimedia sessions over IP networks.

STE (Secure Terminal Equipment)

New secure telephone for use by the US Gov- ernment.

STU-IIB

Secure Telephone Unit Generation Two Version B. NATO version of STU-III.

STU-III

Secure Telephone Unit Generation Three. no longer in production and set to become obso- lete at the end of 2009, the STU-III was the US Government's primary secure communications device for over twenty years.

STU-IIIA

Secure Telephone Unit Generation Three Ver- sion A. US Secure telephone that can connect with a STU-IIB.

Synchronous

Synchronous refers to the way in which data is passed between the 90si and the attached Secure Telephone. Specifically, in synchronous communications each data bit is "clocked" between the 90si and the Secure Phone using clock signals generated by the Secure Phone. The clock signal tells the 90si what "data rate" the Secure Phone is using.

Two-Line Dual-Mode Configuration

This 90si configuration allows the attached fax to function as BOTH a secure fax AND a non- secure fax. Unclassified faxes can be received aoutomatically (unattended).

VoIP

An acronym for Voice Over Internet Protocol which refers to systems for delivering voice communications over IP networks.

Volatile Memory

Employed in the 90si, this type of memory loses its data when power is removed.

Model 90si Secure Fax Gateway User's Guide

www.gwfs.com, 877-951-9800, info@gwfs.com

help line: 877-951-9814

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GateWay Fax Systems 90SI manual STE Secure Terminal Equipment, Synchronous, Two-Line Dual-Mode Configuration, VoIP