Herc, jimpit, there exists a remote possibility that noise is being introduced in outside cable bundles in the way of cross-talk, caused by adjacent DSL services within the same pair bundles and cable sheaths. I wouldn't put too much weight into this, but the possibility presents itself.
The one major issue that dispels this is that you are able to complete calls satisfactorily to roaming numbers (800s) when using the same access lines. This puts the problem, again, in the access platform and the upstreams.
jimpit, the time of day that you cited seems highly unlikely to me, on the surface, unless there are some time of day transmissions taking place at that hour of the morning over the dsl lines, and my first hypothesis above is also true.
Were it not for the 800 numbers being okay, I'd speculate along the lines of the following:
If field level upgrades were done in order to make dsl customers lines suitable, it's conceivable to me that many splice points and bridge tap locations were recently entered and modified, load coils removed, etc., and perhaps some existing dial lines were "swapped out" with inferior ones, in order to make the new dsl services good to within their expected operating parameters. Hmm. While this would be legal, for reasons I state below, I don't think that it's actually the cause of your problems.
The saving grace for the ILECs, if these causes are in fact the case, is that they could always stand behind the caveat that there is no guarantee that dial ups will work to any tariffed level of service, or guaranteed service level. And despite how terrible this sounds from a societally-perceived basis, they would be right.
This has been a grievance of the user community ever since the breakup of T, but the period of most vehemence has been since the advent of the WWW as we now know it, and the early ISP rollouts. Or, since around 1994-1995. Legally, it could be argued, they are within their rights, as long as the dial in line can be used for voice... the service for which it was initially designed, marketed and deployed.
But again, if you are able to get through okay, using the remote dial up connections to the 800 targets, these are probably not the cause.
As I coposed this reply, I was stating ideas from a stream of consciousness. Could you tell? smiles
Regards, Frank Coluccio |
