Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!hayes!tnixon From: tnixon@hayes.uucp (Toby Nixon) Newsgroups: comp.dcom.modems Subject: Re: Do US-made modems work in the UK? Message-ID: <2174@hayes.uucp> Date: 18 Oct 90 13:20:05 GMT References: <1990Oct16.133001.271@computing-maths.cardiff.ac.uk> Organization: Hayes Microcomputer Products, Norcross, GA Lines: 39 In article <1990Oct16.133001.271@computing-maths.cardiff.ac.uk>, gae@computing-maths.cardiff.ac.uk (Geraint A Edwards) writes: > If I buy a modem in the US, will it work fully on the > phone system in the UK? I have used US modems on the UK phone system. If you're going to be calling numbers in the UK and Europe rather than just calling back to the USA, you'll need to have a modem that has V.21 (for 300bps) and V.22 (for 1200bps) instead of (or in addition to) the Bell standards. Both the US and Europe use V.22bis for 2400 and V.32 for 9600. > Is it legal? Are the tone-diallings compatible/fully-tolerant? DTMF dialing is standardized worldwide (CCITT Recommendation Q.23). I'll let someone in the UK comment on whether or not it is "legal" to connect unapproved equipment to a UK phone circuit. My personal philosophy is that it is easier to ask forgiveness than to ask permission! > Are even the plugs the same? No. When I hooked up my modem, I used spade connectors and screwed directly into the back of the wall jack. The modular connectors are quite different. However, I understand that adapters are available at computer and phone stores in the UK. -- Toby P.S. This message should in absolutely no way be understood as official advice from my company. Hayes always advises that you use equipment approved for sale and use in the specific country. -- Toby Nixon, Principal Engineer | Voice: +1-404-449-8791 AT&T: !tnixon Hayes Microcomputer Products Inc.| Fax: +1-404-447-0178 CIS: 70271,404 P.O. Box 105203 | UUCP: uunet!hayes!tnixon MCI: 267-0805 Atlanta, Georgia 30348 USA | Internet: hayes!tnixon@uunet.uu.net