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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!van-bc!nwnexus!ole!ssc!tad
- From: tad@ssc.wa.com (Tad Cook)
- Subject: Re: Phone line compatibility with high-speed modems (AMLs)
- Organization: very little
- Distribution: na
- Date: Thu, 30 Jul 1992 04:32:21 GMT
- Message-ID: <1992Jul30.043221.7704@ssc.wa.com>
- References: <1992Jul27.142255.24282@beaver.cs.washington.edu>
- Lines: 21
-
- In article <1992Jul27.142255.24282@beaver.cs.washington.edu> dylan@cs.washington.edu (Dylan McNamee) writes:
- >
- >
- >Apparently, an AML is an encoding box which allows you to piggyback one
- >phone line on top of another. He showed me the box, and it looked sufficiently
- >complex to do this job. He also said the phone company pays something like
- >$800 per box(!). Does anyone know what the effects of these things are?
- >I thought that any line that carries voice at phone-company standards of
- >quality would be able to carry modem signals...
-
- The effect on modems is not good, because bandwidth suffers. You would
- probably have trouble with transfers at 14.4Kbps. The DC line voltage
- that these things provide is not usually 48 vdc, which can cause some
- problems with some gear like answering machines.
-
-
-
- --
- Tad Cook | Phone: 206-527-4089 (home) | MCI Mail: 3288544
- Seattle, WA | Packet: KT7H @ N7DUO.WA.USA.NA | 3288544@mcimail.com
- | Internet: tad@ssc.wa.com or...sumax!ole!ssc!tad
-