Path: utzoo!attcan!uunet!lll-winken!netsys!vector!nobody From: desnoyer@Apple.COM (Peter Desnoyers) Newsgroups: comp.dcom.telecom Subject: Re: Touch-Tone around the world Message-ID: Date: 3 Jan 89 21:31:34 GMT Sender: chip@vector.UUCP Lines: 26 Approved: telecom-request@vector.uucp X-Submissions-To: telecom@bu-cs.bu.edu X-Administrivia-To: telecom-request@vector.uucp X-TELECOM-Digest: volume 9, issue 3, message 3 In article mcvax!santra.hut.fi!news@uunet.UU.NET writes: > >As a side show, I've also had problems on long-distance connections in >Finland, and they sound a lot like the slippage problems that were described >here. When I call Helsinki from Jyvaskyla, I keep getting these {'s almost >every five seconds ! The problem is, there are three (!) companies involved >in the mess: the local telco for Jyvaskyla area, the PTT (as the long-distance >carrier) and the Helsinki local telco. The problem would seem to in the >PTT/Helsinki telco connection. A lot on it I can do to it from here... > If (1) the '{'s appear regularly, rather than sporadically, (2) they appear more often on more expensive calls, and (3) you don't have itemized long distance billing in your area, you may be suffering from metering pulses. I know they used them recently in Sweden, but I don't know whether other countries have used this billing method. The idea is that the long-distance office sends these tone pulses (at 10-20kHz) at intervals representing some monetary unit worth of service, and something remarkably like a gas meter records them at the local office. Some modems are immune to these pulses. With others, if this is indeed the problem, you might be able to improvise a low-pass filter (or get one from the PTT? sounds to practical to be true.) Of course, it could be slips or bad noise, too. Peter Desnoyers