On Wed, 28 Jan 2009, Karl Fife wrote: > One problem with BRI adoption has no doubt been the need for external power > to the NT1 or TA. > > Obviously analog loops are powered by the CO, so much of the benefit of > ISDN-BRI as the first voice circuit is eroded away for a large percentage of > the installed base. > > From our experience, if you wanted high availability, you ended up with > something that looked like a comcast digital voice install -- battery > backups, transformer blocks, external terminal adapters, wire rat's nest > etc. It raises the hurdle. > > -Karl >
Not to mention up front install cost. It was literally ten years ago that I had BRI circuits, but I recall having to BUY the NT-1s at several hundred bucks a pop. And then install fees for the engineer. It was a very expensive proposition back then. I imagine times have changed, as it seems that in some areas it can be actually less expensive than two POTS lines. I suppose in rural areas where the installed copper is starting to fail you will get better voice quality, but in the city I don't think you get much out of it being digital to the house. j _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
