nanog mailing list archives

Phasing out of telco TDM Backbones (was: Phasing out of copper)


From: Jay Ashworth <jra () baylink com>
Date: Sun, 30 Nov 2014 00:09:40 -0500 (EST)

----- Original Message -----
From: "Måns Nilsson" <mansaxel () besserwisser org>

Maintaining copper plant is expensive. It will be retired as soon as
buy-in on FTTH is high enough. Telia Sonera is doing it in Sweden,
so the trend is global. (OTOH, in Sweden, young people moving out from
their parents, if they can find somewhere to rent, usually only get a
fixed connection for Internet access. Telephony is all mobile.)

Absolutely: maintaining analog copper last-mile is expensive.

But let us not conflate being ok with telcos replacing analog copper last-mile
with being ok with telcos replacing PCM with VoIP, especially in trunking
applications, and *especially* using non-dedicated backbones, as these are the
directions the RBOCs appear to be going in, and those are much less acceptable
ideas than the former.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra () baylink com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates       http://www.bcp38.info          2000 Land Rover DII
St Petersburg FL USA      BCP38: Ask For It By Name!           +1 727 647 1274


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