"Is TDM going the way of dial-up?"

Frank A. Coluccio frank at fttx.org
Fri Mar 26 16:17:06 UTC 2010


   Apologies for the gibberish of my previous message.
   Here's The URL that never made it to the list that contains the article
   I referenced and my footer note:
   [1]http://siliconinvestor.advfn.com/readmsg.aspx?msgid=26408512
   --- frank at fttx.org wrote:
   From: "Frank A. Coluccio" <frank at fttx.org>
   To: "Michael Thomas" <mike at mtcc.com>
   Cc: nanog at nanog.org
   Subject: Re: "Is TDM going the way of dial-up?"
   Date: Fri, 26 Mar 2010 09:10:37 -0700
     re: "what is the state of voip-over-cellular as essentially the last
     holdout
     of TDM? Will the new 4G stuff be able to support latencies, etc? Has
     the
     work on handovers-over-IP matured enough that it's viable?"
     One of the biggest hurdles in bringing Ethernet to mobile/cellular
   apps
     has been its lack of synchronous capabilities. This is now being
     overcome
     in a variety of ways, both IETF-instigated and at IEEE, and through
     some
     proprietary solutions where vendors are re-introducing system
   clocking.
     See
     my footer note <fac:> that addresses this subject at the bottom of
     [1]this message.
     --- mike at mtcc.com wrote:
     From: Michael Thomas <mike at mtcc.com>
     To: Steve Meuse <smeuse at mara.org>
     Cc: nanog at nanog.org
     Subject: Re: "Is TDM going the way of dial-up?"
     Date: Fri, 26 Mar 2010 08:33:38 -0700
     On 03/26/2010 08:26 AM, Steve Meuse wrote:
     > Rick Ernst expunged (nanog at shreddedmail.com):
     >
     >> I'm wondering if others are seeing the same behavior, if it's
     >> market-dependant, or if I'm just imagining things.  I'm working on
     building
     >> new infrastructure and my current thoughts are to minimize my TDM
     >> footprint.  It would be useful to get a better feel if this is an
     overall
     >> trend or something local.
     >
     > You aren't imagining things. In fact, some large national networks
     have been designed to support solely ethernet. It comes down to cost,
     as always....
     Speaking of which, what is the state of voip-over-cellular as
     essentially the
     last holdout of TDM? Will the new 4G stuff be able to support
     latencies, etc?
     Has the work on handovers-over-IP matured enough that it's viable?
     Mike
   References
     1. http://siliconinvestor.advfn.com/readmsg.aspx?msgid=26408512

References

   1. http://siliconinvestor.advfn.com/readmsg.aspx?msgid=26408512



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