Columbia Technology Ventures

Optimized ethernet-based system for inter/intranet telephony

This technology is a comprehensive infrastructure optimized for high-quality Voice Over IP (VoIP) and other internet-based data transfer.

Unmet Need: Simplified network for inter/intranet telephony

Current VoIP options suffer due to varying combinations of jitter (signals arriving at slightly different times), latency (time delay for signals to travel across lines), poor internet connectivity, or shortcomings in user hardware, software, and network setups. In addition, the majority of known internet telephony products are designed to operate in accordance with the H.323 signaling and control protocol, which is complex and difficult to use. As a result of this complexity, different implementations of H.323 devices may be adversely affected by compatibility issues. Therefore, there remains a need for a network telephony appliance which is low cost, operates using a simple signaling protocol and offers a vast set of advanced telephony features.

The Technology: Integrated network for low-cost and optimized inter/intranet telephony

This technology provides a packet-based voice communication system for use over the internet and intranet telecommunications networks. This integrated network includes (i) a network controller hub for routing calls, (ii) a data acquisition and signal processing package for encoding calls into digital signals, (iii) a speaker software system for playing incoming calls, and (iv) an interconnect network to interface all components with the internet and each other. The network telephony appliance is also able to implement high level telephony functionality that includes a monitoring feature, call forwarding, streaming audio mode, caller log, and callee log. As a result, this technology provides a simplified and cost-effective voice communication system that can be used over the internet and intranet.

Applications:

  • Internet-based telephone calls
  • Internet-based video calling
  • Internet-based radio
  • Internet-based television
  • Internet-based data sharing
  • Internet-based mailing

Advantages:

  • Can be applied across an Ethernet network for secure local communication via intranet connection
  • Low-cost
  • Increased flexibility

Lead Inventor:

Henning Schulzrinne, Ph.D.

Patent Information:

Patent Status

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