Framework for Supporting Emergency Telecommunications Service (Ets) in Ip Telephony

By Carlberg, K.

Book Id: WPLBN0000694014
Format Type: PDF eBook:
File Size: 0.1 MB
Reproduction Date: 2005

Title:	Framework for Supporting Emergency Telecommunications Service (Ets) in Ip Telephony
Author:	Carlberg, K.
Volume:
Language:	English
Subject:	Information and Communication, Engineering, Recreation
Collections:	Technical eBooks and Manuals Collection, Technical eBooks Collection
Historic Publication Date:
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Citation APA MLA Chicago Carlberg, B. K. (n.d.). Framework for Supporting Emergency Telecommunications Service (Ets) in Ip Telephony. Retrieved from http://gutenberg.cc/

Description
Technical Reference Publication

Excerpt
Introduction: The Internet has become the primary target for worldwide communications in terms of recreation, business, and various imaginative reasons for information distribution. A constant fixture in the evolution of the Internet has been the support of Best Effort as the default service model. Best Effort, in general terms, implies that the network will attempt to forward traffic to the destination as best as it can, with no guarantees being made, nor any resources reserved, to support specific measures of Quality of Service (QoS). An underlying goal is to be fair to all the traffic in terms of the resources used to forward it to the destination.

Table of Contents
Table of Contents 1. Introduction ....................................................2 1.1. Emergency Related Data .....................................4 1.1.1. Government Emergency Telecommunications Service (GETS) ......................................4 1.1.2. International Emergency Preparedness Scheme (IEPS) ..5 1.2. Scope of This Document .....................................5 2. Objective .......................................................7 3. Considerations ..................................................7 4. Protocols and Capabilities ......................................7 4.1. Signaling and State Information ............................8 4.1.1. SIP .................................................8 4.1.2. Diff-Serv ...........................................8 4.1.3. Variations Related to Diff-Serv and Queuing .........9 4.1.4. RTP ................................................10 4.1.5. GCP/H.248 ..........................................11 4.2. Policy ....................................................12 4.3. Traffic Engineering .......................................12 4.4. Security ..................................................13 4.4.1. Denial of Service ..................................13 4.4.2. User Authorization .................................14 4.4.3. Confidentiality and Integrity ......................15 4.5. Alternate Path Routing ....................................16 4.6. End-to-End Fault Tolerance ................................17 5. Key Scenarios ..................................................18 5.1. Single IP Administrative Domain ...........................18 5.2. Multiple IP Administrative Domains ........................19 6. Security Considerations ........................................20 7. Informative References .........................................20 Appendix A: Government Telephone Preference Scheme (GTPS) .........24 A.1. GTPS and the Framework Document ..........................24 Appendix B: Related Standards Work ................................24 B.1. Study Group 16 (ITU) .....................................25 Acknowledgements ..................................................26