Friday, August 26, 2005

Ask the Expert Newsletter: VoIP redundancy

SearchEnterpriseVoice.com: Voice over IP Newsletter
August 26, 2005
___________________________________

ISSUE SPONSORED BY: Chpt 6: VoIP Deployment in Enterprises

......................................................................
IN THIS ISSUE

-- Spotlight: Redundancy
-- Redundancy in an IP telephony network utilizing inline power
-- Cost to build VoIP reliability
-- Material covering high-availability and redundant networks
-- Gartner: Total VoIP redundancy nearly impossible
-- VoIP Case study: Iagu Networks

HEADLINES
----------------------------------------------------------------------

SPOTLIGHT: REDUNDANCY | WhatIs.com

Redundancy is the quality of a system, an item of information, or a
bit that is redundant. In VoIP, you need network redundancy in order
to get the network back online and
to maintain e-mail and phone service. Learn more about VoIP
redundancy in this week's collection of expert advice.
http://searchenterprisevoice.techtarget.com/gDefinition/0,294236,sid66_gci213987,00.html?track=NL-85&ad=526220

::::::::::::::::::::::::::::: SPONSOR :::::::::::::::::::::::::::::::

Chpt 6: VoIP Deployment in Enterprises

Chapter Download -- VoIP Deployment in Enterprises
Obtain this free chapter download from the book, "Implementing Voice
over IP" from John Wiley & Sons which talks about the emergence of
productivity-enhancing IP-based applications and services. This
chapter presents an overview of IP-PBX, IP Centrex and IP-based PBX
tie lines, along with detailed illustrations on VoIP functionality
and deployment strategies.
Access this chapter here:
http://searchEnterpriseVoice.com/r/0,,41717,00.htm?track=NL-85&ad=526220

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

REDUNDANCY IN TELEPHONY NETWORK USING INLINE POWER | Patrick Ferriter

Where is it most important to have redundancy in an IP telephony
network utilizing inline power? Get advice on the levels of
redundancy, PoE switches and Spanning Tree Protocol (STP) in this
expert reply.
http://searchenterprisevoice.techtarget.com/ateQuestionNResponse/0,289625,sid66_gci1118937,00.html?track=NL-85&ad=526220

COST TO BUILD VOIP RELIABILITY | Tom Pisello

What happens to your VoIP system during an extended power failure?
How much will it cost to build reliability? Tom Pisello explains in
this expert answer.
http://searchenterprisevoice.techtarget.com/ateQuestionNResponse/0,289625,sid66_gci1091376,00.html?track=NL-85&ad=526220

MATERIAL ON HIGH-AVAILABILITY AND REDUNDANT NETWORKS | Carrie Higbie

Need reference material on MPLS, load-balancing, protocol metrics,
cost manipulation, summarization and convergence? Expert Carrie
Higbie suggests a few places to check in this answer.
http://searchenterprisevoice.techtarget.com/ateQuestionNResponse/0,289625,sid66_gci1027519,00.html?track=NL-85&ad=526220

ALSO ON SEARCHENTERPRISEVOICE.COM
----------------------------------------------------------------------
GARTNER: TOTAL VOIP REDUNDANCY NEARLY IMPOSSIBLE | NEWS

New research from Gartner suggests that complete VoIP network
redundancy is too expensive for most organizations, but it recommends
instituting redundancy policies that include backup servers in remote
locations, maintaining a secondary network service provider link and
using the PSTN as an emergency backup.
http://searchenterprisevoice.techtarget.com/newsItem/0,289139,sid66_gci1096784,00.html?track=NL-85&ad=526220

VOIP CASE STUDY: IAGU NETWORKS

Find out how Iagu Networks was able to build redundancy and
successfully deploy VoIP in this exclusive case study.
http://searchenterprisevoice.techtarget.com/originalContent/0,289142,sid66_gci1115399,00.html?track=NL-85&ad=526220

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

CONTACT US:

Sales
For sales inquiries, please contact us at:
mailto:bmcgovern@techtarget.com

Editorial
For feedback about any of our articles or to send us your article
ideas, please contact us at:
mailto:lbloss@techtarget.com


---------------------- FREE E-NEWSLETTERS! ----------------------
SearchEnterpriseVoice: Updates on new site content

Click here to subscribe:
http://searchEnterpriseVoice.techtarget.com/tieredRegPage?track=NL-85&ad=526220&val=0&newsletters=1031635&email=pet.computter@gmail.com

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

ABOUT THIS E-NEWSLETTER

This e-newsletter is published by SearchEnterpriseVoice.com, a
targeted Web
site from TechTarget, the most targeted IT media and events company.
TechTarget offers magazines, Web sites, e-newsletters, Webcasts and
conferences for enterprise IT professionals.
Copyright 2005 TechTarget. All rights reserved.

_____________________________________________________________________

To unsubscribe from "Voice over IP Newsletter":

Go to unsubscribe: http://SearchEnterpriseVoice.com/u?em=pet.computter%40gmail.com&uid=3058509&cid=526220&track=NL-85

Please note, unsubscribe requests may take up to 24 hours to process;
you may receive additional mailings during that time. A confirmation
e-mail will be sent when your request has been successfully
processed.

Contact us:
SearchNetworking
Member Services
117 Kendrick Street, Suite 800
Needham, MA 02494