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Article #1254Re: Internal Modem Problem - NO DIALTONE (analogue problem?)
From: Mike Tomlinson
Date: Wed, 12 Nov 1997 00:00
Date: Wed, 12 Nov 1997 00:00
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1636 bytes
In article <879275102snz@inf-eden.demon.co.uk>, Chris Kennington <News@inf-eden.demon.co.uk> writes > The > basic rule seems to be "most phones will work on a UK sysytem, > but UK phones will not work on anyone else's". I'm not certain, but I think because of the length of time it took to bring the UK phone system up to scratch (ie convert it from click'n'bang to digital), it's been necessary for BT exchanges to be fairly tolerant of the variations in dialling tones and make/break pulses produced by the huge range of phones used. I had one of the early BT push-button phones which used an internal battery to drive the line relay. When the battery went and the buttons no longer worked, I became quite adept at dialling numbers using the cutoff buttons. -- Mike Tomlinson On holiday in Madeira Beach, Florida. Avg temp 75degF
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10c6a1,ff0d73fc84201cca X-Google-Attributes: gid10c6a1,public X-Google-Thread: 1036bc,ff0d73fc84201cca X-Google-Attributes: gid1036bc,public X-Google-Thread: 1131b0,ff0d73fc84201cca X-Google-Attributes: gid1131b0,public From: Mike Tomlinson <jasper@nospam.demon.co.uk> Subject: Re: Internal Modem Problem - NO DIALTONE (analogue problem?) Date: 1997/11/12 Message-ID: <aKmSugBOKia0EwaR@jasper.demon.co.uk> X-Deja-AN: 289056109 References: <876818758snz@longley.demon.co.uk> <k1CthpAQm9Z0Ew3w@jasper.demon.co.uk> <879275102snz@inf-eden.demon.co.uk> Reply-To: Mike Tomlinson <mdt@earthling.net> Distribution: world Organization: The Pub Newsgroups: sci.electronics.repair,demon.tech.pc,comp.periphs