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

Dylan Ebner dylan.ebner at crlmed.com
Fri Mar 26 15:45:27 UTC 2010


Funny thing about this is we have been steadily getting rid of all of our t1 and ds3 circuits and replacing them with metro-e or cable based services at much better price/Mbs. However, when we went to VOIP and wanted to do sip trunking with qwest, they needed to deliver this over t1, otherwise is wasn't cost effective.

Dylan Ebner

-----Original Message-----
From: Rick Ernst [mailto:nanog at shreddedmail.com] 
Sent: Friday, March 26, 2010 10:16 AM
To: nanog at nanog.org
Subject: "Is TDM going the way of dial-up?"

I've noticed over the last 3 years or so that TDM, specifically T-1, access
and transport has been in a steady decline.  Customers are moving to FTTH
and cable, or going WiMAX and Metro-Ethernet.  Ethernet seems to have taken
an even bigger bite out of DS-3.  The bigger pipes seem to favor ethernet. A
recent upgrade from OC-3 to GigE transport actually saved us a large chunk
of money.

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.

Thoughts?

Thanks,





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