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Gateway and Trunk Concepts Chapter 07
The Process of Converting Voice to Packet 0
Encoding Voice into Binary mu-law is a positive value is a negative value
Choosing a Voice Codec
RTP and RTCP – Real-time Transport Protocol Sequence numbers Time stamps Real-time Transport Control Protocol – Packet count – Packet delay – Packet loss – Jitter (delay variations)
Trunking CME to the PSTN
Trunking CME to Other VoIP Systems
H.323 The first VoIP
SIP Session Initation Protocol – NEXT Generation of H.323
MGCP Media Gateway Control Protocol – First true client/server VoIP signaling protocol “Call agent” – Not as widely supported as H.323 or SIP
SCCP Skinny Client Control Protocol – Only Cisco proprietary protocol in use today – Its function is to provide signaling between the Cisco Unified Communication Manager and the Cisco IP phones
ITSP (Internet Telephony Service Providers) Vonage Verizon at&t Ooma
VoIP ISP in USA (sample list) Best X-Voice Magic Jack Nextiva Avaya Lingo Zimbio NEC Ooma 8x8 Talk Switch Cisco ShoreTel Intalk Viatalk VoIP.com ITP Vonage
Configuring and Verifying Gateway and Trunk Chapter 08
Configuring Analog Ports FXS FXO
FXS Foreign Exchange Station Ports Signaling types – Ground start – Loop start
FXO Foreign Exchange Office
Configuring Digital Voice Ports T1 CAS PSTN interfaces T1 CCS PSTN interfaces PBXs use E&M CAS typically uses loop start
Configuring a T1 CAS PSTN Interface Turn to page 253
Configuring a T1 CCS PSTN Interface Turn to page 257
Dial Peers (POTS & VoIP Dial Peers)
Voice Call Legs
Configuring POTS Dial Peers
Dial Peer Wildcards
Private Line Automatic Ringdown PLAR FXS PLAR FXO PLAR
Router Call Processing & Digit Manipulation
Inbound and Outbound Dial Peers
Matching Inbound and Outbound Dial Peers
Failovers & Multiple Voice Paths
Redirecting Operator Calls
Centralizing PSTN Access
Using Translation Profiles
QoS (Quality of Service) Bandwidth Delay – Fixed delay – Variable delay – Jitter (delay variations) – Packet loss End-to-end delay budget: <150 ms Jitter: 30 <30 ms Packet loss: <1%
Cisco AutoQoS Advantages over manual QoS configuration Reduces time of deployment Provides configuration consistency Reduces deployment cost Still allows for manual tuning
Desmond Lee Principal Consultant BT Switzerland
DUE Adapting Legacy Phone Systems to VoIP Vincente DIngianni Director of Professional Services Binary Systems,
Network+ Guide to Networks 5 th Edition Chapter 11 Voice and Video Over IP.
© 2011 AudioCodes Ltd. All rights reserved. AudioCodes Confidential Proprietary AudioCodes Solutions for….. Every type of UC Deployment February 2011 Ian.
Network+ Guide to Networks 6 th Edition Chapter 12 Voice and Video Over IP.
CHAPTER I+2 Overview of the PSTN and Comparisons to Voice over IP Enterprise Telephony Today.
© 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 SBCS Technical Webinars Fax Support in SBCS Marcos Hernandez Technical.
Voice over IP By: Adiel AKPLOGAN CAFE Informatique S. A. - TOGO - Web:
Evan Roggenkamp VoIP/IP Telephony. Designed for ISDN networks originally Tuned to work over TCP/IP Protocol Suite Built With: (some of them) H.
1 IP Telephony (VoIP) CSI4118 Fall Introduction (1) A recent application of Internet technology – Voice over IP (VoIP): Transmission of voice.
BAI613 Packet Telephony Module 6 Enterprise IP telephony.
How Microsoft IT Architected and Deployed Unified Communications Jonathan R. Lewis Sr. IT Manager, Australia Microsoft Corporation.
Quintum Technical Training Installation VoIP GATEWAY Presents and Configuration Click to continue.
TCOM 590: Comprehensive Voice over IP George Mason University Dragan Hrnjez Spring 2014.
VoIP PRESENTATION BY HÜSEYİN SAVRAN OUTLINE PSTN an brief history of telephone.
VOIP 101: The Fundamentals of IP Telephony William Simmelink, General Manager VoIP Business Unit Texas Instruments February 2003.
Carleton University 1 February 25th, 2014 Voice over IP Presenter: Tony Hutchinson System Engineering Manager.
October 10-13, 2006 San Diego Convention Center, San Diego California Asterisk Jargon Carl Davis.
Microsoft Exchange 2007: Unified Messaging J. Peter Bruzzese (with Brien Posey) Co-Founder of ClipTraining Triple MCSE/MCT/MCITP: Messaging for Exchange.
Presented By:- Yash Jariwala Paras Patel Deep Amrutiya.
1 © 2007 Avaya Inc. All rights reserved. Understanding SIPs Role in Intelligent Communications Tom Doria Director – Avaya P2P Technical Business Development.
Microsoft ISA Server H.323 Gateway and Gatekeeper Overview of IP Telephony, H.323, and ISA Server H.323 Support.
Voice over IP. IP Networking Overview IP assumes delay and packet ordering problems.
Multimedia Networking10-1 Real-Time Protocol (RTP) r RTP specifies a packet structure for packets carrying audio and video data r RFC r RTP packet.
Pankos Business Data Networks and Telecommunications, 6th edition Copyright 2007 Prentice-Hall May only be used by adopters of the book Telecommunications.
Paging System Design Selecting a Paging Control Unit.
1 Chapter 1 Multimedia Communication. 2 Chapter 1 Multimedia communications 1.1 Introduction 1.2 Multimedia information representation 1.3 Multimedia.
January 23-26, 2007 Ft. Lauderdale, Florida VoIP Conversation Recording Methods and Applications Andrew Blakely.
Open Standards: Communications at Your Desktop SmartCity Summit, April 29 th, 2003 Anne L. Coulombe Head of SIP-Based Solutions, Mitel Networks
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