[asterisk-ss7] IP vs TDM (was TCAP over VPN?)

[Bryan Scott]

On Jul 13, 2010, at 7:01 PM, Charl Barnard wrote:
> 
>> 
>> Which at least partially explains the lower cost... there aren't any
>> TDM
>> circuits involved.
>> 
> 
> I always suspected the Big Transition to IP was more vendor push than
> operator pull, so I'm keen to hear why a sharp guy like Kevin would reckon
> that TDM is inherently more expensive than IP ..

I don't think it's so much the hardware as it is the transport.

Some of my SS7 A-Links come to West Wendover, NV from Reno, NV, spanning the ENTIRE state and transiting multiple LECs along the way.  One provider figured they could offer redundant A-Link service to two points in two states over IP for half the cost of one of those existing TDM circuits.

-- Bryan