FoIP gateways-architectures, implementation and QoS issues

Proceedings. IEEE International Multi Topic Conference, 2001. IEEE INMIC 2001. Technology for the 21st Century. Pub Date : 2001-12-28 DOI:10.1109/INMIC.2001.995320

Y. Rafiq, O. Bashir, S.I. Shah, S.A. Khan

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引用次数: 3

Abstract

Real-time facsimile communication over the Internet is a challenging task. Facsimile devices and protocols have been optimised for facsimile communication over PSTN (public switched telephone network) links. To allow these devices to communicate over the Internet, FoIP (Facsimile over Internet Protocol) gateways are required. Source and destination facsimile machines connect to these gateways over PSTN links. Peer gateways are connected to each other over the Internet. The inherent best-effort nature of the Internet poses serious QoS (quality of service) issues for facsimile transmission. Packet losses, delays and delay variations may disrupt a facsimile session. FoIP gateways providing real-time FoIP communication need to incorporate measures that attempt to provide efficient and reliable transport service over the Internet. This paper describes typical architectural components of FoIP gateways. QoS issues related to real-time FoIP transfer are highlighted and measures are discussed that assist in resolving these issues.

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FoIP网关——架构、实现和QoS问题

通过因特网进行实时传真通信是一项具有挑战性的任务。传真设备和协议已经优化为在PSTN(公共交换电话网)链路上进行传真通信。为了允许这些设备通过Internet进行通信，需要FoIP (Internet协议传真)网关。源传真机和目的传真机通过PSTN链路连接到这些网关。对等网关通过Internet相互连接。Internet固有的“尽力而为”特性为传真传输带来了严重的QoS(服务质量)问题。丢包、延迟和延迟变化可能中断传真会话。提供实时FoIP通信的FoIP网关需要结合尝试在Internet上提供高效和可靠的传输服务的措施。本文描述了FoIP网关的典型体系结构组件。强调了与实时FoIP传输相关的QoS问题，并讨论了有助于解决这些问题的措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings. IEEE International Multi Topic Conference, 2001. IEEE INMIC 2001. Technology for the 21st Century.

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