VoIP Migration and Implementation

  • July 29, 2010 29 Jul'10

    Virtualized SBCs lower cost of SIP trunking but lack scale

    A virtualized session border controller (SBC) for the Avaya Aura platform reduces the costs of SIP trunking and eases management for small to midsized deployments, but large implementations will probably need to stick with dedicated hardware ...

  • July 01, 2010 01 Jul'10

    How to best deploy open source VoIP? Don't go in cold

    Users say successful open source VoIP deployments hinge on having Linux and IP telephony expertise in-house -- or at least knowing when to pay for a turnkey solution.

  • May 27, 2010 27 May'10

    Cisco supply chain woes hit VoIP projects, too

    IP telephony pros have viewed all the drama surrounding the notorious backorders that have plagued some of Cisco Systems' core networking products this year as someone else's problem. But there are signs that the Cisco supply chain woes may soon ...

  • April 30, 2010 30 Apr'10

    Why open source and other VoIP and UC deployment models fail

    One organization learned that Asterisk's open source communication server was not a good fit with its limited in-house expertise and resources. Find out why so many organizations are struggling with their VoIP and UC deployments.

  • April 22, 2010 22 Apr'10

    Global VoIP implementation unites scattered telecommunications

    A global VoIP implementation with Avaya infrastructure helped an international industrial auctioneering firm overcome its piecemeal collection of legacy voice systems. The IP telephony deployment boosted business continuity and improved business ...

  • April 08, 2010 08 Apr'10

    Failed open source VoIP deployment leads to hosted VoIP strategy

    After years of struggling to tame open source VoIP, one Texas marketing company saw malfunctions melt away when it opted for a hosted VoIP service from a local service provider.

  • February 17, 2010 17 Feb'10

    Enterprises put VoIP virtualization into production

    VoIP virtualization has been unattainable until now. After years of advising enterprises against running real-time communications applications in a virtual environment, VMware has collaborated with Mitel on a new virtual call control server, and ...

  • February 11, 2010 11 Feb'10

    Not all SIP yet? Session border controller can do protocol translation

    SIP was supposed to standardize communications equipment, but not all organizations are all-SIP just yet, including the state of Delaware, which is using session border controllers for protocol translation between its newer Cisco and legacy Avaya ...

  • February 03, 2010 03 Feb'10

    Best practices guide: Testing VoIP system power consumption

    To accurately benchmark VoIP system power consumption, a number of factors must be taken into account, such as VoIP handset configuration, the LAN infrastructure, system states, steady-state power draw, power factor and other variables. This guide ...

  • August 28, 2009 28 Aug'09

    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.

  • October 02, 2008 02 Oct'08

    Skype leverages partnerships to penetrate the enterprise market

    By building partnerships with companies like Digium, Skype continues to expand into the enterprise market. The technology's easy-to-implement unified communications ability to reduce costly telephone bills could win over some reluctant customers.

  • August 27, 2008 27 Aug'08

    Digium's Asterisk PBX does God's work at Midwest church

    When its leased TDM PBX hit the wall, the Calvary Church turned to Digium for an open source, Asterisk-based IP PBX system.

  • August 21, 2008 21 Aug'08

    Software-based unified communications help flower wholesaler blossom

    At a time when most companies are still piloting or evaluating unified communications, flower wholesaler FlorExpo has been reaping the benefits of UC for four years. The company deployed NEC's software-based Sphericall IP PBX four years ago and ...

  • July 07, 2008 07 Jul'08

    IP telephony management software essential to large-scale deployments

    Vendors such as Clarus Systems, NetQoS and InfoVista are offering specialized software for IP telephony management. Large enterprises can no longer get away with manual testing and performance management.

  • July 03, 2008 03 Jul'08

    IP telephony project: Caterpillar converting 100,000 phones

    Caterpillar, the world's largest manufacturer of construction and mining equipment, is in the midst of a massive IP telephony project. Steve Bergstrom, Caterpillar's enterprise voice and unified communications architect, said the company has ...