HD Comm '09 – Tweets of AudioCodes, GIPS, Wyde Voice presentations

The tweets presented below were sent during the HD Communications Summit, September 15, 2009.  Some formatting and selective spelling correction done for readability.

Alan Percy, Director Market Development, AudioCodes

  • Alan Percy, Dir Mkt Develpment, AudioCodes takes stage. How do we get to “our dream” of HD. Awareness/education one step, very important
  • Percy – Feeding bloggers, formation of HDConnect necessary to share information, share our experiences
  • Percy – HD community create “hype” need to show how to make it stick; demos, case studies, product intros
  • Percy – Carriers announcing HD products, 1.7M cust potentially in Moldova, over 500K. Japan/OKI announced encoder
  • Percy – Only handful of apps can leverage HD, but Microsoft, Broadsoft, Avaya,MailVision #Digium all using, need to evangelize more software
  • Percy – HD Peering is the next hurdle, today now HD deployments are islands. Need to connect , Metcalfe’s law (More users,best network
  • Percy – HD peering like fax machines in ’70s, initially islands, then more people got
  • Percy – Proposal an “HD Connect Peering” committee for HDCOnnect ; Berninger says “proposing” means volunteering…
  • Percy – Which voice coder? Not going to have “one universal HD coder” move to specialized coders for wireless, wireline, enterprise, hosted
  • Percy – Coders expected to improve, stereo close. If only one video coder, many today’s portable video apps wouldn’t have happened
  • Percy – Connecting islands, using wideband transcoder (Mediant 3000) by AudioCodes; convert from G.722 to AMR-WB

Jan Linden, VP Engineering, Global IP Solutions

  • Berninger – HD event makes Linden happy, has been promoting HD for a while.
  • Linden – GIPS in a lot of IP phones, endpoints, gateways
  • Linden – Been using HD voice for nearly 9 years. Talk about end user experience
  • Linden – Standard phone quality tinny, muffled, some sounds like S, F hard to distinguish, more difficult to understand accents
  • Linden – Go through tradeoffs for HD, speech codec sets upper limits of speech quality
  • Linden – Impact on HD due to Network packet loss, network jitter, latency
  • Linden – Handset needs HD capable mic; at least 16 kHz sampling rate, HD capable speaker, need 16 kHz sampling
  • Linden – HD voice quality enhancement need echo cancellation, noise suppression, VAD, AGC
  • Linden – Implementation issues, PC limitations include not designed for real time comm, every device different, mobile device limitation
  • Linden – mobile devices, limited processing, battery l;ife, OS limits access to real time VoIP, speaker/mic placement encourage echo/noise
  • Linden – HD codec only half of story, must account for network impairments, environment factors in full implementation
  • Linden – Quotes Rodman/Polycom CTO, “If you’re going to do [HD], do it right, it doesn’t cost extra”

Mike Eastman, VP Sales, WYDEVoice

  • Mike Eastman VP Global Sales, talk about (New!) HD Softbridge
  • Eastman – Leverage work done by AudioCodes, GIPS to roll out HD Conferencing bridge
  • Eastman – Smaller version of bridge supports 1,000 concurrent, big version 10,000 users
  • Eastman – new bridge supports G.722, G.722.1, G.722.2, iSAC, some softphones. Don’t want to transcode, but suport native
  • Eastman – Intel blade server, each blade supports 1,000 users, support “geo-distributed” architecture, support full featured conf eng
  • Eastman – Supporting legacy callflows via AEL; real-time I/F in SIP so speaker can see states, and web services API
  • Eastman – Architecture can be set up geographic unit; send one voice stream per conference in a geo. Most traffic is light
  • Eastman – New HD conferencing service, FreeconferencecallHD.com launched last week
  • Eastman – Support soft phone, inc Gizmo5, CounterPath, Skype, IP Phones like Polycom, IP PBXes like #Digum Asterisk, FreeSwtich
  • Eastman – Through API, can look at recorded calls, play back calls on a live call .. (hey, cool!!)
  • Eastman – Softbridge supports 2 to 10,000 concurrent users
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