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ct
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06/01/2005
CT Looks into PacketCable Multimedia
To examine PCMM's potential, CT brought heavy hitters from Cablevision, Camiant, Cisco and Charter together to chat.
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05/01/2005
450,000 Words Later …
When I got my monthly email from Communications Technology magazine's managing editor Ron Hendrickson with the "your May column is due on such-and-such date" message, I wondered about a suitable topic. It occurred to me that this month marks the 20th anniversary that I've been writing for CT. Yikes!
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04/29/2005
1Q Kick Off: Comcast Reports Solid Results, Raises Guidance
So many Comcast subs are drinking the MSO’s Kool-Aid that it’s upping guidance for ’05 operating cash flow growth to 14-15% from 12%. It added 200K digital subs in 1Q, and the advanced HD and HD DVR boxes were really cooking, with 425K HHs signing up (the strong demand for advanced boxes has Comcast upping […]
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04/20/2005
On the Circuit
Sister pub Communications Technology is accepting nominations for its annual "Reader’s Choice" awards program, which honors the industry’s most innovative new products, through Apr 23 (http://www.ct-magazine.com). Winners will be announced at SCTE Cable-Tex Expo (June 14-17, San Antonio, TX).
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04/01/2005
Advanced PHY
In the latter part of 2002, I penned two columns discussing the then-new Data Over Cable Service Interface Specification (DOCSIS) 2.0, its support for greater per-channel upstream data throughput, two new multiple access technologies-advanced time division multiple access (A-TDMA) and synchronous code division multiple access (S-CDMA)-and something called advanced PHY. (See the October and November 2002 issues of Communications Technology: www.ct-magazine.com/archives/ct/1002/1002_broadband.html and www.ct-magazine.com/archives/ct/1102/1102_broadband.html.)
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04/01/2005
Voip Testing
Now that we've finally reached the Year of VoIP (voice over Internet protocol), our installation and operations teams are beginning to realize that although voice and data both involve packets traveling across networks, voice requires different tests to verify that telephony is working. Voice quality measurement, or how closely the received waveform of a conversation matches the sending end waveform, is quickly gaining status as a metric for telephony offerings. Along with that status comes the need to understand the correlation between various voice quality measurement models and the limitations of automated voice quality testing.