News

Voice networking and VoIP

  • 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

  • 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.

  • 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 ...