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Voice/IP Communications

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Mastering IPv6 SLAAC Concepts and Configuration
By Sean Wilkins
Dec 19, 2013
Some differences between IPv4 and IPv6 are more obvious than others. Sean Wilkins explains the new available methods for performing address configuration, how to implement DHCPv6 in IPv6, and the best options for stateless configuration. He also walks you through a detailed sample SLAAC configuration on a Cisco device to be sure you can apply what you’ve learned to your situation.
IPv6 Basic Subnetting and Examples
By Sean Wilkins
Dec 5, 2013
This quick and dirty look at the notation differences between IPv4 and IPv6 will ensure that you know what you need to to run IPv6 effectively on your network.
IPv6 Translation and Tunneling Technologies
By Sean Wilkins
Jun 26, 2013
With the exhaustion of the IPv4 addressing space quickly approaching, it has become a high priority for organizations to begin their own deployments of IPv6. This can be accomplished in a number of different ways. This article examines specific methods and how they can be used to support an IPv6 deployment.
IPv6 Tunneling Technology Configuration
By Sean Wilkins
Jun 26, 2013
This article focuses on the basic configuration of available IPv6 tunneling technologies for Cisco networks.
Functional Deployment Models and Call Flows for Cisco Unified Customer Voice Portal
By Rue Green
Jan 3, 2012
This chapter discusses some of Cisco Unified Customer Voice Portal's well-defined and commonly referenced functional deployment models.
IPv6: What's the Problem?
By David Chisnall
Apr 27, 2011
David Chisnall continues to look at the problems facing people attempting to deploy IPv6. This week's article looks at various bugs and limitations in existing systems, which cause problems when rolling out IPv6.
IPv6: Are We Nearly There Yet?
By David Chisnall
Apr 22, 2011
Since the IANA ran out of addresses, IPv6 adoption has gone from being useful to being essential. But still only a small fraction of the Internet is accessible via the newer protocol. David Chisnall examines some of the reasons for the delay in widespread adoption.
Q&A with Shannon McFarland, Co-Author of IPv6 for Enterprise Networks
By Shannon McFarland
Apr 15, 2011
Meet the co-author of Cisco Press’s release, IPv6 for Enterprise Networks, a book dedicated to IPv6 deployment for the enterprise. Co-author Shannon McFarland discusses the focus of the book, what makes it unique, and why you have a lot of work to do.
Deploying IPv6 in WAN/Branch Networks
By Muninder Sambi, Sanjay Hooda, Shannon McFarland, Nikhil Sharma
Apr 13, 2011
This chapter provides and overview of WAN/branch deployment and also covers WAN/branch IPv6 deployment considerations, WAN/branch deployment over native IPv6, and includes an example of WAN/branch implementation.
VoIP Deployment Models in Service Provider Networks
By Adeel Ahmed, Habib Madani, Talal Siddiqui
Oct 5, 2010
This chapter gives you an understanding of how Voice over IP (VoIP) is deployed in service provider (SP) networks by describing a use case in which the VoIP infrastructure and the transport and the access are managed by an SP.
Using Voicemail with Google Voice
By Nancy Conner
Jun 24, 2010
Nancy Conner shows how to master using voicemail with Google Voice.
IPv6: Why Bother?
By David Chisnall
Apr 16, 2010
IPv6 has been coming Real Soon Now for well over a decade. David Chisnall looks at what the benefits it brings and how to support it.
SIP Trunking Design and Implementation Considerations
By Christina Hattingh, Darryl Sladden, ATM Zakaria Swapan
Mar 21, 2010
This chapter highlights many of the network design and implementation considerations you should work through while planning or installing a SIP trunk for production purposes in your network.
Practical Asterisk: Installation and "Hello World"
By Stefan Wintermeyer, Stephen Bosch
Jan 20, 2010
Using Static IP Addresses on Your Network
By Eric Geier
Sep 14, 2009
Eric Geier helps you discover ways to convert from dynamic to static addresses on your network.
Why IT Pros Need to Learn About IPv6 Security Now: An Interview with Scott Hogg and Eric Vyncke
By Linda Leung, Scott Hogg, Eric Vyncke
Jul 4, 2009
Linda Leung talks with Scott Hogg and Eric Vyncke about IPv6 transition and security issues.
Offloading Traditional Mobile Networks with IP
By Kevin Shatzkamer, Mark Grayson, Scott Wainner
Jun 23, 2009
This chapter discusses pseudowire transport mechanisms used to provide a bridge between the legacy TDM systems and All IP systems on mobile networks.
Cisco TelePresence Room Design
By Alan Glowacki, Kevin McMenamy, Roland Saville, Tim Szigeti
Jun 17, 2009
This chapter covers the spatial, aesthetic, environmental, and technical requirements for designing an ideal space for a Cisco Telepresence system.
IPv6 Internet Security for Your Network
By Eric Vyncke, Scott Hogg
Jun 4, 2009
This chapter covers how to secure your network when it is connected to the IPv6 Internet.
VoIP Performance Management and Optimization: Managing VoIP Networks
By Adeel Ahmed, Habib Madani, Talal Siddiqui
May 19, 2009
To ensure voice quality and to optimize media delivery over the IP, it is crucial to properly plan, design, implement, and manage the underlying network. This chapter discusses what are the best practices for planning media deployment over IP networks.

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