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	Voice Over IP, The Way It Should Be January 11, 1999
	By David Willis Voice over IP works, but it still has a long way to go before it's ready for the enterprise. If you're aiming to adopt VoIP at the campus level, proceed with caution; you'll need to exercise tight control, along with healthy provisioning, of every link and intermediate node. We tested a variety of products and show how you can improve conditions for a successful deployment. Read the main story Codecs Matter: Our Findings The complete Codec/Application comparison chart. (acrobat) In this chart we compare Hardware Assist, Rated Bandwidth, Processor Utilization and Quality over various network conditions. Hear it for yourself: Audio samples from our H.323 tests Note regarding audio samples These files are for comparison of audio codecs found in H.323 desktop clients. Because of the media conversion procedures used in preparing these samples, the audio quality is slightly lower than what you'd actually perceive during a call. These samples were recorded directly from a Pentium Pro/200 MHz PC running Windows 98 and Microsoft NetMeeting or Quicknet Technologies' H.323 application. These samples were first recorded to analog cassette tape via a direct connection to the PC's sound board -- the Creative Technology SoundBlaster Live! Value adapter being used for NetMeeting samples, and the Quicknet Technologies Internet LineJACK for the Quicknet Samples. These samples were then recorded as .WAV files via the SoundBlaster Live! Adapter using Creative WaveStudio 4.02. Tape hiss introduced by the recording technique was removed with FMAH's D/Noise 1.01d http://www.fmah.com and Pristine Sounds '98 http://www.pristinesounds.com., using identical filters for all samples. All samples were recorded at the MCI WorldCom Developer's Lab in Richardson, TX MCI Lab				Related Links Cisco's 2600 Router Says It All With Voice Over IP By Mike Fratto VoIP in the Enterprise By Eric Hall, with David Willis Turn Your Enterprise Network Into a PBX With Selsius Systems' VoIP Solution By Eric Hall Other Articles by David Willis Trouble Brewing in the WAN Asylum October 1, 1998 NetReality WiseWan: WAN Management Meets WAN Control October 15, 1998 Sync Updates T-FRAP To Handle Traffic Load November 1, 1998 Connectivity Begins at Home December 1, 1998 Company Directoryto browse our data, starting with a particular company. Network Computing Linksallows you to request additional product information from our advertisers. Print This Page E-mail this URL

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