Browse Prior Art Database

Integrated Voice/Data PABX

IP.com Disclosure Number: IPCOM000061667D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Dunn, JM: AUTHOR [+4]

Abstract

This article describes a method of adding low speed terminals to a PABX using standard building wiring. Tellabs, Inc. has a standard line of data multiplexers and associated equipment called the 330 family. Existing members of this family include the Tellabs 330 and Tellabs 331 data multiplexers and the Tellabs 310 datavoice system. The Tellabs 330 dataplexer and the Tellabs 331 Xplexer are statistical multiplexers designed to support a terminal network via leased lines. They support both switched and non-switched networks using a private protocol. The Tellabs 310 datavoice system is a set of units used to send data over the standard building wiring used for telephone service. It also permits concurrent voice operation by using data-over-voice techniques.

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Integrated Voice/Data PABX

This article describes a method of adding low speed terminals to a PABX using standard building wiring. Tellabs, Inc. has a standard line of data multiplexers and associated equipment called the 330 family. Existing members of this family include the Tellabs 330 and Tellabs 331 data multiplexers and the Tellabs 310 datavoice system. The Tellabs 330 dataplexer and the Tellabs 331 Xplexer are statistical multiplexers designed to support a terminal network via leased lines. They support both switched and non-switched networks using a private protocol. The Tellabs 310 datavoice system is a set of units used to send data over the standard building wiring used for telephone service. It also permits concurrent voice operation by using data-over-voice techniques. The single line unit at the telephone (a Tellabs 3121) combines the standard telephone jack and an RS232 jack onto two wires. The multi-line unit near the PABX (a Tellabs 3101) separates the data and voice, routing the voice to the PABX and the data to the data network. The method disclosed herein combines the functions of the Tellabs 3101, the Tellabs 331, and a standard station line interface card (SLIC) into one integrated voice/data interface card set. This new card set supports sixteen digital voice channels using pulse code modulation (PCM) and sixteen data channels and occupies four standard SLIC positions, and an entire time division multiplexer (TDM) bus, as illustrated in Fig...