Advanced IP Pipeline:
"Someday, customers of wireless broadband provider
Clearwire Corp. may be able to use Voice over IP
services. But right now, Craig McCaw's newest company
is giving its customers the silent treatment by
apparently blocking outside VoIP providers from
its network."
http://www.advancedippipeline.com/news/159905772
- ferg
"...In what the company claims is an effort to preserve the performance
of its pre-standard WiMAX network, Clearwire says it reserves the right
to prohibit the use of a wide range of bandwidth-hungry applications, a
list that apparently includes VoIP as well as the uploading or
downloading of streaming video or audio, and high-traffic Web site
hosting."
Hrm... Isn't a VoIP call realtively low bandwidth? I haven't studied
this, but Vonage's site seems to imply that the maximum data rate is 90Kbps
(http://www.vonage.com/help_knowledgeBase_article.php?article=190). I
typically see speeds greater than this from my web browser... Are they
saying that anything that might consume over 100Kbps isn't going to be
allowed?
Eric 
90kbps may be low bandwidth but the packets per second are a killer for
some equipment. VoIP typically has small packets, 80 bytes or 160 bytes,
whereas your webbrowser has most packets close to the max MTU, usually
1500 byte packets. There is quite a bit of wireless gear that buckles
under the stress of very few VoIP streams. Those few streams add up to
much less then the theoretical advertised throughput.
Adi
Hrm... Isn't a VoIP call realtively low bandwidth? I haven't studied
this, but Vonage's site seems to imply that the maximum data rate is
90Kbps
(http://www.vonage.com/help_knowledgeBase_article.php?article=190). I
typically see speeds greater than this from my web browser... Are they
saying that anything that might consume over 100Kbps isn't going to be
allowed?
it's not about bandwidth, it's about pps. namely, radios don't very much
like a lot of pps ;]
-p
A typical voip call is a packet in each direction every 20ms, this makes a total of 100pps.
Translated into a tcp stream with one ack per data packet, this would mean 600 kilobit/s bandwidth usage with the same pps. I would be quite upset if I couldn't use 600 kilobit/s for approximately the same time I would use voip per day (which truthfully wouldnt be much).