News

Voice networking and VoIP

  • November 27, 2007 27 Nov'07

    Enterprise collaboration tools from consumer market

    Consumer-based collaboration tools are finding their way into the enterprise. IT departments can fight the trend, give up and ignore it, or embrace it.

  • November 14, 2007 14 Nov'07

    Defining unified communications

    Read how industry pundits are defining unified communications.

  • November 11, 2007 11 Nov'07

    IPTV Crash Course: Chapter 3: The Technology of IP Networks

    IPTV service utilises basic IP network technology to broadcast television using the internet.

  • October 30, 2007 30 Oct'07

    Microsoft's OCS is finally here, for better or for worse

    Zeus Kerravala reports on the long-awaited Microsoft OCS launch. Find out the pros and cons of OCS.

  • October 30, 2007 30 Oct'07

    Non-unified communications can cost millions

    Fragmented communications are costing companies millions of dollars by disrupting workflow and business processes, a new study has revealed.

  • October 29, 2007 29 Oct'07

    Unified communications platform gets SMB twist

    While unified communications has eluded the SMB market, Siemens has released an all-in-one UC appliance specifically for the SMB.

  • October 25, 2007 25 Oct'07

    Asterisk creator: Consider open source VoIP, think twice about hybrid-hosted

    Asterisk creator Mark Spencer clarifies his position on hybrid-hosted VoIP, and discusses open source VoIP and what it means for business users.

  • October 23, 2007 23 Oct'07

    Bringing QoS to end-user standards

    The phone call setup experience and perception of voice quality are the biggest factors contributing to the user's satisfaction. However, while the dialing experience can be objectively measured, the caller's judgment of voice quality is subjective....

  • October 21, 2007 21 Oct'07

    VoIP certification credentials

    Many certifications touch on voice over IP topics tangentially, but numerous credentials now focus a fairly substantial portion of their coverage on this subject matter. In this certification survey, we take a look at available certifications, ...

  • October 15, 2007 15 Oct'07

    VoIP certification credentials

    Looking for VoIP skills? Want to know how to hire a VoIP specialist? This list of VoIP certifications and the skills they impart should be useful reading!

  • October 10, 2007 10 Oct'07

    Unified communications new priority for HP

    Unified communications is a confusing area with a number of vendors in the mix. HP has launched new services to help ease companies into unified communications and help them determine which integrated tools will best fit their business goals.

  • October 10, 2007 10 Oct'07

    Securing VoIP Networks Chapter 7: Key Management Mechanisms

    Key management is a fundamental part of protecting Internet multimedia applications like VoIP, but the protocols can be difficult to design.

  • October 10, 2007 10 Oct'07

    Unified communications new priority for HP

    HP has launched unified communications (UC) services to help companies find and design a UC deployment that is right for their business.

  • October 07, 2007 07 Oct'07

    IP telephony adoption rising, quality sagging

    IP telephony adoption continues to grow, but service quality is lagging behind, according to a user survey from Psytechnics.

  • October 01, 2007 01 Oct'07

    How to select the right IP PBX

    Selecting the right IP PBX system for your company can be complicated. Here are some important things to consider when purchasing an IP PBX.

  • September 20, 2007 20 Sep'07

    Australians more tech-aware

    Telecommunications and the internet are becoming increasingly embedded in the lives of Australians, says an ACMA survey.

  • September 20, 2007 20 Sep'07

    Unified communications an 'uphill battle' for Microsoft

    Unified communications is going to be a tough sell for Microsoft, which is looking to eliminate the PBX and go all software.

  • September 19, 2007 19 Sep'07

    End-to-end network management enables reliable VoIP, unified communications

    Monitoring voice quality, service availability, and security conditions are discussed in this Q & A with Gurmeet Lamba of Clarus Systems.

  • September 16, 2007 16 Sep'07

    Communications-as-a-service taking hold

    Communications-as-a-service is taking hold worldwide as a viable hosted IP telephony system.

  • September 09, 2007 09 Sep'07

    VoIP, unified communications prompt new technologies, threats

    Wireless voice servers and handsets, VoIP and unified communications threats, and licensing agreements constitute recent changes in the VoIP market.

  • August 31, 2007 31 Aug'07

    Cisco issues CallManager security update

    Security flaws in Cisco CallManager and Unified Communications Manager could be exploited for cross-site scripting and SQL injection attacks, but a security update is available.

  • August 28, 2007 28 Aug'07

    VoIP, unified communications study reveals challenges

    VoIP and unified communications deployments can affect other applications. A study by Network General highlighted some challenges introduced by convergence.

  • August 27, 2007 27 Aug'07

    VoIP, unified communications study reveals challenges

    VoIP and unified communications deployments can affect other applications. A recent study by Network General highlighted some of the challenges introduced by convergence.

  • August 22, 2007 22 Aug'07

    Australian telecoms growth predicted to fall

    Research consultancy BuddeComm has predicted the Australian telecoms market will grow just 2.8% in the 2008 financial year to $36.3 billion, driven predominantly by data and broadband services. This is down from the 3.1% estimated this financial ...

  • August 21, 2007 21 Aug'07

    VoIP performance management abounds at VoiceCon

    VoIP performance management tools announced at VoiceCon show that vendors are focusing on user experience over infrastructure.

  • August 21, 2007 21 Aug'07

    Hosted VoIP: Take the headache and heartache out of VoIP, Part 2

    Part 2 of this series investigates the QoS and security issues of the hosted VoIP model.

  • 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.

  • 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 ...

  • 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.

  • 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.

  • 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.

  • 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.

  • 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 ...

  • 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 ...

  • 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 ...

  • 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.

  • 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.

  • 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.

  • 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.

  • 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