Implementing Voice Over IP - Preface

... PREFACE In general, voice transmission over the Internet protocol (IP) , or VoIP, means transmission of real-time voice signals and associated call control information over an IP- based ... embedded in them. In this book, I use VoIP and IP telephony synonymously, most of the times. This book grew out of my participation in many VoIP-related projects over the past several years....

Ngày tải lên: 30/09/2013, 07:20

... 67References, 676 VoIP Deployment in Enterprises 6 8IP- Based Endpoints: Desktop and Conference Phones, 6 9IP- PBX, IP Centrex, and IP- Based PBX Tie Lines, 7 1IP- VPN and VoIP for Tele-Workers, 77Web-Based Call ... format.Library of Congress Cataloging-in-Publication Data is available.ISBN 0-4 7 1-2 166 6-6 Printed in the United States of America10987654321 IMPLEMENTING VOICEOVER...

Ngày tải lên: 15/09/2012, 10:04

... 679 xxviii Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) Foundation Learning Guide www.it-ebooks.info ptg Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) ... 559 codec transparent Command 559 Media Flow-Around and Transparent Codec Example 559 Configuring H.323-to-H.323 Fast-Start-to-Slow-Start Interworking 560 H.323-to-H.32...

Ngày tải lên: 17/03/2014, 19:20

... mạng IP (voice over IP - VOIP) (Nhóm nghiên cứu: Voice Over IPHớng dẫn: ThS. Nguyễn Tô ĐôngThực hiện : Kim Thanh Tùng -Lơng Ngọc Tuấn ĐT2-K41)Truyền thông trên các mạng chuyển mạch gói nh IP, ... ZenderGiới thiệu ngôn ngữ mô phỏng phần cứng VHDLNguyên lý của kỹ thuật OFDMThoại trên mạng IP (Voice over IP- VOIP)Khuếch đại quang sợi pha tạp Pr (PDFA), Nd (NDFA) cho b ớc só...

Ngày tải lên: 31/08/2012, 10:00

... Summary II: Voice over IP Technology 6. Voice over IP Benefits and Applications Key Benefits of VoIP Packet Telephony Call Centers Service Provider Calling-Card Case Study Value-Added ... Telephony Packet Voice Network Overview VSC Architecture and Operations VSC Implementation Summary IV: Voice over IP Applied 14. Voice over IP Configuration Issues Dial-Plan Conside...

Ngày tải lên: 14/09/2012, 11:42

... 1 [VOICE OVER IP] CH NG I: T NG QUAN V VOIPƯƠ Ổ Ề1. Gi i thi u chung v VoIP.ớ ệ Voice over Internet Protocol (VoIP) là m t công ngh cho phép truy n tho iộ ệ ề ạ s d ng giao th c m ng IP, trên ... gi ng nói (Voice Compression)ọPage 8 [VOICE OVER IP] Multiplexing: Ghép kênh là qui trình chuy n m t s tín hi u d ng th i quaể ộ ố ệ ồ ờ m t ph ng ti n truy n d n.ộ ươ ệ ề ẫPAM(pulse-a...

Ngày tải lên: 09/10/2012, 16:40

... quality in only eight-bit words, but they differ in relatively minor details. The - law method has a slight advantage over the a-law method in terms of low-level signal-to-noise ratio performance, ... carried across the voice path and it is a common reason why you can sometimes experience problems remotely accessing your voice mail. Network-to-Network Signaling Network-to-network...

Ngày tải lên: 30/09/2013, 05:20

... line ds0-group 1 timeslots 1-8 type e&m-wink-start ! voice- port 1/0:1 !dial-peer voice 1 pots destination-pattern 5…. prefix 5 port 1/0:1 ! dial-peer voice 2 voip destination-pattern ... 255.255.255.0 frame-relay interface-dlci 104 frame-relay class voip_qos_256k ipx network 104 ! map-class frame-relay voip_qos_128k no frame-relay adaptive-shaping becn frame-relay...

Ngày tải lên: 30/09/2013, 05:20

... II: Voice over IP Technology Chapter 6 Voice over IP Benefits and Applications Chapter 7 IP Tutorial Chapter 8 VoIP: An In-Depth Analysis Chapter 9 Quality of Service Chapter 6. Voice over ... simplify the local-area network (LAN) by implementing a common voice and data network to the desktop. This is accomplished with IP phones, as shown in Figure 6- 16....

Ngày tải lên: 30/09/2013, 05:20

... Part IV: Voice over IP Applied Chapter 14 Voice over IP Configuration Issues Chapter 15 Voice over IP Applications and Services Chapter 14. Voice over IP Configuration Issues ... that no overlapping digits with a five-digit plan exist. If overlapping digits do exist, it must decide whether to move to a six- or seven- digit plan or to give each site its own two-dig...

Ngày tải lên: 30/09/2013, 05:20