General and Background Telephony Information

Fax Boards

Advanced Image Handling Capabilities for Fax Applications
This white paper discusses fundamental digital image concepts and how the image handling capabilities of the Brooktrout TR114 board and API combine to provide the developer of enhanced fax solutions with unmatched performance and flexibility. (MSWord - Size 78K)

Image Handling for High Throughput Fax Applications
An advanced image handling capability, called forms overlay, has been developed by Brooktrout Technology for the TR114 which allows efficient and flexible transmission of similarly formatted faxes. Forms overlay, an exclusive capability of the TR114, overcomes the limitations of traditional methods for fax image handling in high throughput applications. (MSWord - Size 49K)

DID — Direct-Inward-Dialing

DID for inbound fax routing
The Auto Attendant of Fax Reception. DID routing provides an efficient and effective means for a LAN fax server to determine the intended recipient of a received fax. (PDF - Size 48K)

DID Telephone Lines — General Information
This document provides information about what DID lines are, how they work, and how to order them from your telephone company. (PDF - Size 22K)

Direct In-Bound Fax Routing with Loop-Start Cards
Technical summary for implementation of a direct inbound fax routing solution using DTMF tones generated by telecommunications equipment, a TR series loop-start card, and a suitable LAN Fax application. (PDF - Size 54K)

T1 Digital Trunks

Implementing T1 in the LAN Fax Environment
With a T1 subscriber line you get up to 24 virtual phone lines or "channels" on a single physical line made up of two pairs of twisted copper wires. There are three clear advantages to using a T1 line over analog loop start or DID lines: cost, inbound routing flexibility, and channel density. (MSWord - Size 97K)

Adding a CSU to a T1 Fax installation
A CSU, or Channel Service Unit, is a compact piece of customer premises equipment that can be installed inline on a T-1 trunk immediately in front of a network interface device such as the Brooktrout TRNIC+I24T. (PDF - Size 23K)

ISDN for Network Fax Installations

ISDN TR114 and PABX – Installation and Configuration
Information suitable for all PABX installations, including an installation framework and sections targeted to the installer and the PABX Engineer. This document provides Brooktrout ISDN TR114 detail, and highlights information to be exchanged between the installer and PABX Engineer. (MSWord - Size 94K)

Utilizing Basic Rate ISDN in a LAN Fax Application
The advantages of using ISDN lines (as opposed to analog telephone lines) for fax applications is fast call set-up and use of Called Party Number (CPN) information for inbound fax routing. Brooktrout integrated Basic Rate Interfaces allow a 2- or 4-channel TR114 Universal Port Fax and Voice board to be directly connected to an ISDN BRI line. (MSWord - Size 68K)

Brooktrout Intelligent Fax Versus CAPI Fax
Comparison of the Brooktrout Technology TR114 Universal Port Board for Basic Rate ISDN Versus CAPI With CAPI Compatible Terminal Adapter for Fax Applications (MSWord - Size 69K)

Other Important Information

Guide to Least Cost Routing with RightFax
Least cost routing (LCR) allows you to route data using the least expensive path. The fax industry has adapted LCR to include the process of routing faxes among fax servers on a network, to reduce traffic over the public phone lines. By using an organization's Internet or intranet connections, faxes can be routed to the server closest to the fax destination, potentially converting a fax transmission from a long distance call to a local call. (MSWord - Size 450K)

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