Providing Telephone Line Access to a Packet Voice Network

Abstract

Research in the area of packet voice over the past ten years has proven the value of packet technology for voice transmission. Continuing research in this area has led to the development of a packet satellite network for use as a testbed for packet voice telephone services. In order to allow a wide range of users to participate in the testing of this technology, ISI has developed the Switched Telephone Network Interface card to allow interconnection between the packet network and the commercial telephone system. This report describes the design of this device and the discusses the techniques used to implement functions such as sound/silence detection, echo suppression, and dialing.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1983
Accession Number
ADA126270

Entities

People

  • Ian H. Merritt

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Background Noise
  • California
  • Communication Systems
  • Computer Programs
  • Computers
  • Detection
  • Detectors
  • Digital Communications
  • Frequency
  • Information Science
  • Modulation
  • Noise
  • Telephone Lines
  • Telephone Systems
  • United States
  • Voice Communications

Fields of Study

  • Computer science

Readers

  • Radio communications and signal processing.
  • Software Engineering.
  • Technical Research and Report Writing.

Technology Areas

  • Space
  • Space - Satellites