News
Voice networking and VoIP
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August 20, 2007
20
Aug'07
Hosted VoIP: Take the headache and heartache out of VoIP, Part 1
No matter what size network an enterprise is running these days, large and small alike are faced with increasing technical and financial challenges.
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August 16, 2007
16
Aug'07
Voice over IPv6: Architectures for Next Generation VoIP Networks
VoIP technolgies are not immune to system failures, from hacking to jitter, and these issues can present problems for companies who depend on their network. This chapter examines some of the issues that are faced by VoIP systems, focusing on those ...
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August 15, 2007
15
Aug'07
VoIP models and services: Complete guide
With clear, concise explanations of existing VoIP business models and deployment methodologies, this guide will enable you to weigh the pros and cons of each based on your needs.
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August 14, 2007
14
Aug'07
QoS -- What voice managers need to know
Quality of Service (QoS) technologies can be quite confusing between technical complexities and marketing jargon. In this tip, find out what voice managers need to know about QoS as it relates to VoIP.
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August 12, 2007
12
Aug'07
Implementing video on demand
Video on demand (VoD), in at least some of its potential service models, is perhaps the most challenging of all network applications. Implementation of VoD should be should be undertaken in three particular steps.
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August 09, 2007
09
Aug'07
VoIP vulnerability threatens data
VoIP vulnerabilities have now reached a level of sophistication that allows hackers to steal, view or delete data.
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August 08, 2007
08
Aug'07
NAS appliance specifications
NAS appliances are noted for their convenience, offering dedicated internal storage that is relatively straightforward to identify and manage. The biggest issue for NAS appliances is avoiding network bottlenecks and supporting expansion without ...
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August 07, 2007
07
Aug'07
Application-aware storage promises intelligence and automation
Storage professionals overbuy both performance and capacity in an effort to forestall potential storage problems. Tiered storage was one way to address this problem -- matching storage resources and costs with the value of data. Today, storage is ...
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August 06, 2007
06
Aug'07
Video networks: The fundamental structure
Video delivery, content network, IPTV, triple play -- these are just a few of the terms used today for video over broadband data networks. This concept of video networks is an increasing challenge, and like most network challenges, this one is ...
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August 05, 2007
05
Aug'07
Understanding IMS (IP Multimedia Subsystem)
IMS (IP Multimedia Subsystem) is an emerging architectural framework, based on SIP and IP, for offering multimedia and VoIP services, as well as fixed mobile convergence. This tip explains exactly what the architecture behind IMS.
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August 01, 2007
01
Aug'07
Black Hat 2007: VoIP security reaches tipping point
VoIP security is as bad today as it was a couple years ago, industry experts say. But PGP creator Phil Zimmermann thinks his new Zfone software will help turn the tide.
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August 01, 2007
01
Aug'07
Cisco knocks out Avaya as IP PBX heavyweight
IP PBX adoption is rising as Cisco and Avaya square off for market dominance.
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August 01, 2007
01
Aug'07
Black Hat 2007 preview: Blue Pill under scrutiny
Among the highlights at the year's most anticipated hacker event, vulnerability researchers will challenge Joanna Rutkowska's Blue Pill concept. They'll also pick apart flaws in VoIP, NAC and Web applications.
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July 31, 2007
31
Jul'07
VoIP services spell trouble for telcos
The rise of VoIP is paving the way for companies that haven't traditionally sold voice services to do so. Telcos slow to move will be hard pressed to keep up
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July 29, 2007
29
Jul'07
VoIP services spell trouble for telcos
The rise of VoIP is paving the way for companies that haven't traditionally sold voice services to do so. Risk-adverse telcos slow to move in this rapidly changing environment will be hard pressed to keep up with more agile competitors.
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July 26, 2007
26
Jul'07
Justifying VoIP deployment without cost-analysis
VoIP and unified communications deployments remain sluggish, as network managers look for ways to justify the cost of the infrastructure and system upgrades. Non-financial return on investment (ROI) metrics can be used as a way to augment the ...
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July 25, 2007
25
Jul'07
VoIP solution centre answers users' questions
A new VoIP performance management solution center on Fluke Networks' Web site helps IT professionals to answer some of their VoIP network questions.
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July 22, 2007
22
Jul'07
Black Hat Las Vegas 2007: Special news coverage
SearchSecurity.com covers all the controversy at this year's show with news, features, podcasts, interviews, exploits and more direct from Las Vegas.
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July 19, 2007
19
Jul'07
VoIP performance testing fundamentals
This guide discusses why it is important to run regular VoIP network performance testing and some of the ways it can be done.
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July 17, 2007
17
Jul'07
Unified communications infrastructure threats and defense strategies
Unified communications systems promise exciting productivity gains for workers and cost savings for businesses, but many often underestimate the security threats facing them. John Burke outlines the threats facing unified communications and how to ...
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July 10, 2007
10
Jul'07
Updating a QoS strategy for VoIP traffic
Learn how to update your QoS strategy for VoIP traffic in this tip from Tom Lancaster.
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July 09, 2007
09
Jul'07
Unified messaging system updates company's voicemail
Installing a new unified messaging system helped one company in its daily struggles with an outdated voicemail system.
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June 28, 2007
28
Jun'07
SIP fundamentals
Session Initiation Protocol (SIP) will allow true interoperability, eventually enabling every IP-based device and application to communicate seamlessly with one another. This guide discusses some of the basics of SIP, including vulnerabilities, ...
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June 27, 2007
27
Jun'07
Instant messaging usage increase highlights need for policies
Instant messaging is a valuable business tool for some enterprises. For others, it's a security risk. Either way, a recent Burton Group report suggests that all companies should have an IM usage policy, even if they haven't deployed IM yet.
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June 25, 2007
25
Jun'07
Instant messaging usage increase highlights need for policies
A Burton Group report suggests that all companies should have an IM usage policy, even if they haven't deployed IM yet
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June 24, 2007
24
Jun'07
VoIP performance testing fundamentals
VoIP network performance testing can mean the difference between a VoIP system working at a high level QoS and a weak system that runs so poorly customers could take their business elsewhere. This guide discusses why it is important to run regular ...
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June 19, 2007
19
Jun'07
Securing the enterprise VoIP perimeter
How to make VoIP work without sacrificing firewalls or network perimeter security.
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June 17, 2007
17
Jun'07
VoIP security testing fundamentals
Testing your VoIP security system against all the threats that exist on the network can be a full time job. This guide documents how a VoIP system can be tested and suggest some of the available tools to use -- with a focus on fuzzing tools and ...
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June 14, 2007
14
Jun'07
AIIA outlines federal election wish list
The Australian Information Industry Association (AIIA) has released its policy expectations for political parties in the upcoming 2007 federal election.
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June 12, 2007
12
Jun'07
VoIP call quality and reporting software improves QoS
Technology developed to power IPTV networks is also helping improve VoIP quality of service.
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June 08, 2007
08
Jun'07
VoIP market evolves in 2007
VoIP will see market changes this year as IP PBX sales increase and market leaders shift their focus.
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June 07, 2007
07
Jun'07
VoIP performance testing fundamentals
VoIP network performance testing can mean the difference between a VoIP system working at a high level QoS and a weak system that runs so poorly customers could take their business elsewhere. This guide discusses why it is important to run regular ...
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June 05, 2007
05
Jun'07
Avaya to merge with Silver Lake and TPG Capital
Telephony giant Avaya will be acquired by a private equity firm.
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June 04, 2007
04
Jun'07
Deploying VoIP: Five things every CIO should know
Navigating the complexity of a VoIP migration can be overwhelming. Here are five tips to help steer through the fog of a VoIP deployment.
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June 01, 2007
01
Jun'07
Check Point promises more VoIP security, fewer slowdowns
Check Point's enhanced Open Performance Architecture is designed for deeper security of technologies like VoIP without the network performance problems that often come with it.
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May 31, 2007
31
May'07
VoIP rush heats up cooling debate
Increased VoIP adoption is putting pressure on data centres' power and cooling requirements
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May 31, 2007
31
May'07
Cisco, Nortel frontrunners in Avaya acquisition rumors
Cisco and Nortel are said to be amongst those circling the still-live body of VoIP vendor Avaya, but analysts disagree on which, and why.
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May 29, 2007
29
May'07
The wireless future offers plenty of voice possibilities
Farpoint Group's Craig Mathias surveys the future of wireless networks and their ability to carry voice traffic.
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May 25, 2007
25
May'07
VoIP advice from the trenches
ITKE, or ITKnowledge Exchange, is simply a cool (and quick) way to get a response to your VoIP-related questions.
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May 22, 2007
22
May'07
Mitel acquires Inter-Tel, signaling more consolidation to come
Mitel acquired Inter-Tel last week, signaling a trend toward vendor consolidation in the VoIP market and creating stronger options for SMBs.
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May 21, 2007
21
May'07
Mobile instant messaging enhances company's business processes
A mobile IM service acquired by a hosted VoIP provider encourages more companies to enhance their business processes.
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May 17, 2007
17
May'07
VoIP security fundamentals
VoIP security is a challenge for IT staff because IP telephony brings with it not only the security problems of data networks but also new threats specific to VoIP. In this fundamentals guide, learn about network security threats and emerging IP ...
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May 11, 2007
11
May'07
VoIP, unified communications adoption continue to rise
VoIP and unified communications adoption continue to rise steadily in the enterprise, according to Infonetics Research's latest report.
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April 20, 2007
20
Apr'07
Convergence certification provides evaluation standard
CompTIA has developed a convergence certification, designed to validate qualified convergence professionals.
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April 18, 2007
18
Apr'07
Convergence certification provides evaluation standard
Voice and data convergence are more prevalent and enterprises are looking for certified professionals to administer the combined networks -- leading CompTIA to develop its Convergence+ certification, designed to validate qualified convergence ...
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April 16, 2007
16
Apr'07
How is SIP winning favor over H.323?
What are the similarities, differences and major reasons between SIP and H.323. And why is one winning?
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April 04, 2007
04
Apr'07
Wireless VoIP market to grow rapidly
VoIP and Voice over Wi-Fi markets are expected to be strong in 2007 and remain so through 2012.
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March 29, 2007
29
Mar'07
VoIP network monitoring improves VoIP deployment
VoIP network monitoring and pre-deployment analysis are becoming more important as VoIP application overlay becomes denser
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March 27, 2007
27
Mar'07
VoIP's inherited data security problems
VoIP security problems present a challenge for voice and network staff. This article explains how to secure both your call servers and endpoints, and how best to divide this work between voice and data personnel.
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March 25, 2007
25
Mar'07
Basic VoIP network setup
Basic VoIP network setup advice.