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- Path: polarnet.com!floyd
- From: floyd@polarnet.com (Floyd Davidson)
- Newsgroups: comp.dcom.modems
- Subject: Re: 28.8 baud & telco responsibilities
- Date: 1 Mar 1996 15:42:17 GMT
- Organization: __________
- Message-ID: <4h75sp$fhn@news2.cais.com>
- References: <todamhyp-2802961822500001@bhppp31.bluehawk.com> <4h4kaf$dla@netaxs.com> <DnKFvs.Enq@world.std.com> <4h6ogd$pad@netaxs.com>
- Reply-To: floyd@tanana.polarnet.com
- NNTP-Posting-Host: tanana.polarnet.com
-
- alpert@netaxs.com wrote:
- >I don't claim to be an expert on the technical aspects of telephony.
- >However from a pragmatic perspective I've found my statement to be
- >true, from my own experiences with telephone companies and high-speed
- >modems over the years.
- ...
- >Current high-speed modems come close enough to the theoretical
- >maximium that one cannot expect full 28.8 connections on all voice
- >lines at all times. My own lines are bad enough that many cheap
- >modems won't work at all, and no 28.8 modems I've tried will yield
- >much over 19.2 kbps connections. Yet the line has no audible
- >noise or other problems for voice, and as far as the phone company
- >is concerned nothing is wrong.
-
- And indeed, there is nothing wrong, and you have just proved it!
-
-
- The v.32bis protocol is designed to get 14.4Kbps over a voice
- grade connection that approximately meets minimum specifications.
- A v.34 modem is designed to make use of voice grade connections
- that are better than minimum. With a v.34 modem you can more or
- less test your own line! If you get 14.4Kbps connections or
- better, then basically you know your line probably is at least
- meeting minimum specifications for a voice grade line. The degree
- to which it is better than that can be judged by how close to
- 28.8Kbps you can get.
-
- The phone company could spend a few hundred dollars worth of
- "windshield wiper time" running techs out to your location and
- measuring your local loop for this parameter and that parameter,
- but it would prove nothing that you haven't proven already! Your
- line works as advertized and you are getting what you are paying
- for. You have no valid complaint.
-
- Floyd
-
- --
- Floyd L. Davidson Salcha, Alaska floyd@tanana.polarnet.com
-