Communication Networks for Computers
Communication Networks for Computers
Issues in transnet packetized voice communication
SIGCOMM '77 Proceedings of the fifth symposium on Data communications
Statistical multiplexing of data and encoded voice in a transparent intelligent network
SIGCOMM '77 Proceedings of the fifth symposium on Data communications
Switching and flow control techniques in computer communication networks.
Switching and flow control techniques in computer communication networks.
Transmission of encoded voice in a transparent intelligent network.
Transmission of encoded voice in a transparent intelligent network.
A network combining packet switching and time division circuit switching in a common system
ACM SIGCOMM Computer Communication Review
The codex 6000 series of intelligent network processors
ACM SIGCOMM Computer Communication Review
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
Communication nets; stochastic message flow and delay
Communication nets; stochastic message flow and delay
Overview: Performance considerations for integrated voice and data networks
Computer Communications
Review: VoIP: State of art for global connectivity-A critical review
Journal of Network and Computer Applications
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This paper focuses on network delays as they apply to voice transmission. First the nature of the problem is discussed and this is followed by a review of circuit, packet and hybrid switching. The concept of introducing delay to resolve contention in speech interpolation is also noted, and when applied to both voice and data messages, forms a basis for a relatively new and so-called “transparent” approach to network design. The second part of the paper deals with experimental work. First, external link considerations involving subnet access by frame synchronous vocoders is discussed, and an experimental software interface is described which exploits the 60 to 65% idle time in voice calls. Secondly, based on the simulation of variable network delays, first indications are that with 180 ms “hangover”, the perceptable threshold of variable delay is about 200 ms average. Finally, suggestions for further works on performance analysis and subjective testing are made.