Introduction to Voice Over IP

Introduction to Voice Over IP

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Follow the Insanity at: Downloadable Podcasts at: iTunes: Info Level: Beginner Date Created: August 8, 2010 Length of Class: 60 Minutes Tracks Telephone Systems Prerequisites Introduction to Telephone Systems Introduction to Convergence Purpose of Class This class discusses the basic components and requirements for a business or enterprise Voice Over IP telephone system. Topics Covered VoIP Servers VoIP Clients Gateways Protocols Codecs Network Latency QOS Unified Communications Class Notes VoIP Servers VoIP Servers route calls like a traditional PBX There are proprietary and Open Source versions of VoIP Server software VoIP Clients VoIP "phones" are all client computers Hard Phones are computers made to look like traditional phones Soft Phones are software that is installed on a computer so that the computer can be used as a phone Gateways connect VoIP networks to the PSTN (Public Switched Telephone Network) Protocols VoIP Systems use protocols for servers and clients to communicate SIP is a standards based protocol that numerous vendors use Codecs are used to encode voice communication Codecs determine the Sound Quality and the Bandwidth usage of a call Most VoIP servers come with codecs that you can use without any extra fees. If you need better codecs they can be purchased Network Latency and QOS Network latency is the time it takes for data to get from point A to point B Standard telephones have a latency of 45ms, VoIP can have a latency of up to 75-100ms. QOS -- Quality Of Service -- is a feature of networking equipment that allows the equipment to prioritize network traffic based on what it is. Unified Communications is the idea that computer programs and server should be able to work with telephone communications.

TCP/IP and Subnet Masking

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Trunk Lines | Voice Over IP (Industry) +Telecommunications (Industry)

Trunk Lines IPage Telecom Voice Over IP (Industry) +Telecommunications (Industry)

Cisco Voice & Unified Communications Overview

Get an overview of Voice & Unified Communications where we discuss the hardware, components, protocols, voice gateways, SIP support, and QoS.

Introduction to Active Directory Infrastructure in Windows Server 2012

Info Level: Intermediate Presenter: Eli the Computer Guy Date Created: February 25, 2013 Length of Class: 38:56 Tracks Windows Server 2012 Prerequisites Introd

Lesson 1 - SIP: Basic Call Flow (Peer to Peer)

Topics covered in this video: 1. What is SIP? 2. Is SIP can control Media? 3. SIP Basic Call Flow 4. The 7 important messages for a basic call 5. Conclusions 6.

Analog, Digital, & VoIP phones

a quick and simple explanation for new telecom techs, IT managers or office administrators. The three different technologies are all being used simultaneously

Building Your Own Network for a Computer Lab

NEW CONTENT ON: Info Level: Beginner Presenter: Eli the Computer Guy Date Created: February 15, 2013 Length of Class: 17:05 Trac

Asterisk 123: Intro to Asterisk

Learn more at Asterisk 123 is a technical introduction to the Asterisk Open Source project. The day-long lecture covers the basics of instal

The OSI Model Demystified

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Introduction to Linux

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VOIP GATEWAYS |Voice Over IP (Industry) +Telecommunications (Industry)

VOIP GATEWAYS IPage Telecom Voice Over IP (Industry) +Telecommunications (Industry)

How to Set-up an Enterprise Asterisk-based PBX in 10 Minutes (including coffee break) - In this video we demonstrate how fast and easy it is to set up an enterprise level Asterisk-based PBX system. In just ten minutes a tech

Introduction to Networking

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VLANs, and Trunks, and Switches, Oh My!

In this video, Anthony Sequeira and several Guest Experts discuss the topics of Trunks and VTP that CCNA students should be prepared for in Certification and pr

How does SIP trunking work? - #TechinThree

In this #TechinThree episode, Stephen Whitfield explains how SIP trunking works, what it is and how much calls can cost cost. Want to learn more about technolo

VPN - Virtual Private Networking

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Cisco VoIP Phone System Overview

Whiteboard overview of how a Cisco phone system works from a non-technical system diagram level.

Introduction to RAID

Info Level: Beginner Presenter: Eli the Computer Guy Length of Class: 34 Minutes Tracks Security / Data Integrity Prerequisites None Purpose of Class This

The Ultimate SIP Tutorial

This video is a review of a SIP trace using wireshark. The actual call scenario is a call transfer from a phone inside the session border controller to a phone

VOIP CLIENTS |Voice Over IP (Industry) +Telecommunications (Industry)

Voip CLIENTS IPage Telecom Voice Over IP (Industry) +Telecommunications (Industry)

Network Mapping

Info Level: Beginner Presenter: Eli the Computer Guy Date Created: November 9, 2010 Length of Class: 51 Minutes Tracks Networking Hacking Computer Security /I

Introduction to File Sharing

Info Level: Beginner Presenter: Eli the Computer Guy Date Created: March 30, 2010 Length of Class: 43 Minutes Tracks Servers Prerequisites None Purpose of Cl

PBX vs IP PBX | Difference In Business Phone Systems A PBX is typically a digital system using TDM. An IP PBX is given an IP address on the customer's Local Area Network, LAN as a

Real-Time Transport Protocol (RTP) in VoIP

Join VoIP Expert Terry Vinson as he guides you through this important protocol found in VoIP networks. This is a sample of Terry's live VoIP classes at StormWin

How to Sell Unified Communications - Hosted VoIP solutions

Visit: for more training on selling Unified Communications. Hosted VoIP provides an alternative to capital expenditure when

SIP Trunking - Whiteboard Video

Rethinking your voice strategy? Watch this video to see how Level 3 SIP Trunking can centralize your voice network with the security and Nomadic E-911 features

Tutorial on Cisco Unified Communications Manager Partition's and Calling Search Space's

A quick presentation on Cisco Unified Communications Manager call privileges, focusing on Partitions and Calling Search Spaces.

SIP Devices In A SIP Network

Introduces the main components in the SIP network - what they are and their main function. The second lesson from, a smarter way to learn SI
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