Graves On SOHO Technology

End User Perspective On Home Office Technology
  • rss
  • Home
  • About
    • Contact
    • Advertisers
    • Disclosure
  • Guides & How-To’s
  • Product Reviews
  • Best of…
  • Raves
  • Works In Progress
  • My Personal Blog

Philips DECT Cordless Phone: Functional, But Seriously Flawed

mjgraves | December 31, 2008

I bought this phone system on Woot.com in response to my wife’s request that we get something new for our home line. At $49 it was at least a serious bargain. I see this very system offered on Amazon.com for $80. With four handsets and a base even that seems like a good price.

philips dect 60 with 4 handset cordless phone and answering machine93zdetail 300x225 Philips DECT Cordless Phone: Functional, But Seriously Flawed

Read the rest of this entry »

Comments
No Comments »
Categories
VoIP
Tags
CAT IQ, cordless, DECT, philips, phone, wideband
Comments rss Comments rss
Trackback Trackback

Telecom Junkies On Cellular Security

mjgraves | December 31, 2008

telecomjunkieslogo 96x96 Telecom Junkies On Cellular SecurityThe Voice Report has today released a nice podcast on cellular and smartphone security called “The Secret Agent Phone.”

Comments
No Comments »
Categories
mobile
Tags
cellular, podcast, security, telecom junkies
Comments rss Comments rss
Trackback Trackback

DECT Encryption Analyzed & Cracked

mjgraves | December 30, 2008

A group in Germany have successfully analyzed and cracked the encryption used in DECT cordless systems using relatively trivial hardware. They’ve published an article (in German) and presented at this weeks Chaos Communications Congress (25C3).

From the description of their presentation:

Digital Enhanced Cordless Telecommunications (DECT) is a synonm for cordless phones today. Although DECT can be found nearly everywhere, only little is known about the security of DECT. Most parts of the DECT standard are public, but all cryptographic algorithms used in DECT (authentication and encryption) are secret and not known to the public.

We will show you the following:

  • An introduction into the DECT protocol.
  • An introduction to the DECT authentication and key management functions.
  • An introduction into the DECT low level communication.
  • A detailed security analysis of the protocol.

The presenters are members of a group called dedected.org. A PDF of their 25C3 presentation (in English) is available here.

Note that the groups web site is hosted in a trac SCM system and itself has a faulty security certificate.

Comments
No Comments »
Categories
VoIP
Tags
cracked, DECT, encryption
Comments rss Comments rss
Trackback Trackback

Searching For Tivo & HDMI Cable Insanity

mjgraves | December 29, 2008

tivohd wremote rf 300rgb440 128x67 Searching For Tivo & HDMI Cable InsanityI hate to admit this, but on December 24th my wife and I went to Best Buy looking for a last minute gift. We decided that her younger brother needed a Tivo. Ours is a three Tivo household, although only TivoHD sees any real use these days. One you get used to having a DVR you want one on every TV, and radio too for that matter.

Though we’d had two SD Tivo units for years when we bought or HDTV we initially got the Time Warner HD-DVR instead of Tivo Series 3. The Tivo Series 3 units were $800 at the time, more than we were willing to pay. That experience was enlightening, like stepping back into the dark ages. What crappy menus, and basically no intelligence at all in the software. The CableCo DVR was simply dreadful.

Read the rest of this entry »

Comments
2 Comments »
Categories
HDTV
Tags
Best Buy, Cables, HDMI, Tivo
Comments rss Comments rss
Trackback Trackback

Vera, Z-Wave & I: Day 1

mjgraves | December 28, 2008

logo zwave Vera, Z Wave & I: Day 1Today was the day that I finally got around to taking the Vera home automation system out of the box. It was a simple beginning as I have only one Z-wave device to control at present, a Monster Cable lamp dimmer. In about two hours I was able to get Vera on the network and upgraded to the latest firmware. I also had it controlling my one lamp. Woo Hoo!

Read the rest of this entry »

Comments
2 Comments »
Categories
Home Automation, VoIP
Tags
automation, home, vera, X-10, z-wave
Comments rss Comments rss
Trackback Trackback

Jeff Pulver on HDVoice

mjgraves | December 28, 2008

Today Jeff Pulver posted a blog entry giving his sense that HDVoice will spark a renaissance in the VoIP world. He feels that carriers will be able to differentiate themselves on the basis of quality and earn customer loyalty. He’s outright enthusiastic about HDVoice.

I find Jeff’s focus in this area encouraging. Jeff has a lot of clout and could help push wideband telephony into the thoughts of people who might otherwise pass it by.

Read the rest of this entry »

Comments
6 Comments »
Categories
VoIP
Tags
codecs, Facebook, FWD, Jeff Pulver, wideband
Comments rss Comments rss
Trackback Trackback

« Previous Entries

My Tweets

  • New Year's eve at The Tasting Room at King's Harbor shar.es/h8BHt #fb 7 hours ago
  • New Blog Post: Twelephone: Profile Of A WebRTC Application: Friday, December 28th the VUC will be joined by Chri... bit.ly/WWWOGr 9 hours ago
  • New Blog Post: DoorBot: A Wifi Enabled Smart Doorbell: Some time ago I installed an analog DoorBell Fone to repl... bit.ly/YmEwJT 9 hours ago
  • Very happy to have @twelephone test calls with @chrismatthieu and @DaveMichels this afternoon. #webrtc #hdvoice #vuc 12 hours ago
  • Anyone available to place a sample @twelephone call? I'm trying to test bridging it into a Google Hangout. 14 hours ago

Recent Comments

  • mjgraves on DoorBot: A Wifi Enabled Smart Doorbell
  • Sean on DoorBot: A Wifi Enabled Smart Doorbell
  • Anand on Making Use of Wideband Voice Right Now!: Vonage Mobile
  • mjgraves on Review: Zelher P20 Bluetooth Headset
  • Andrew Dixon on Review: Zelher P20 Bluetooth Headset

Making A Difference


Change a life.

Ideas worth sharing, expressed hereabouts.


Radio For Peace in Houston.

Popular Posts

  • Review: The Gigaset A580IP SIP/DECT Cordless Phone System
  • Updated Home-Office Network Diagram
  • How To: DIY Music Server Using FreeNAS, SlimNAS and an H-P T5700
  • Magic Jack Hacked For Use As An Asterisk Trunk
  • D.I.Y. Asterisk Appliances: A Question Of Scale
  • Review: The Polycom SoundStation IP5000 Conference Phone
  • Gigaset Firmware Update Released
  • Review: Polycom SoundPoint IP335 Entry Level HDVoice IP Phone
  • How To: Building an Embedded Asterisk PBX
  • Polycom SoundPoint IP 550 / IP 650 Reviewed

Tags

3G Android apple Asterisk Astlinux Audio blog bluetooth Broadband CATiq cellular codec conference cordless DECT DSL G.722 gateway Gigaset gsm HD hdvoice headset hp M3 music onsip phone plantronics polycom QoS siemens sip skype SNOM soft phone speakerphone t-mobile technology USB Video VoIP VUC wideband wifi

Colophon

This site is hosted by Lightning Base
using the magic of open source software and 100% recycled electrons.

Archives

  • ▼2012 (72)
    • ►December (7)
    • ►November (9)
    • ►October (1)
    • ►September (3)
    • ►August (6)
    • ►July (5)
    • ►June (10)
    • ►May (9)
    • ►April (1)
    • ►March (5)
    • ►February (8)
    • ►January (8)
  • ►2011 (117)
    • ►December (5)
    • ►November (8)
    • ►October (9)
    • ►September (9)
    • ►August (11)
    • ►July (8)
    • ►June (11)
    • ►May (13)
    • ►April (8)
    • ►March (13)
    • ►February (10)
    • ►January (12)
  • ►2010 (160)
    • ►December (12)
    • ►November (7)
    • ►October (14)
    • ►September (10)
    • ►August (15)
    • ►July (16)
    • ►June (17)
    • ►May (15)
    • ►April (17)
    • ►March (16)
    • ►February (8)
    • ►January (13)
  • ►2009 (229)
    • ►December (16)
    • ►November (15)
    • ►October (13)
    • ►September (24)
    • ►August (23)
    • ►July (18)
    • ►June (16)
    • ►May (17)
    • ►April (22)
    • ►March (18)
    • ►February (21)
    • ►January (26)
  • ►2008 (296)
    • ►December (26)
    • ►November (23)
    • ►October (24)
    • ►September (26)
    • ►August (21)
    • ►July (32)
    • ►June (24)
    • ►May (16)
    • ►April (14)
    • ►March (29)
    • ►February (22)
    • ►January (39)
  • ►2007 (14)
    • ►December (8)
    • ►November (5)
    • ►October (1)

Meta

  • Register
  • Log in
  • Entries RSS
  • Comments RSS
  • WordPress.org
rss Comments rss valid xhtml 1.1 design by jide powered by Wordpress get firefox