In this small island off the coast of Europe, your're supposed to get BABT approval for your device *before* connecting it to the phone line. This rule is, needless to say, widely ignored. >Kalle had an valid comment on approval to hook things to the >phone lines. I'm not 100% sure on this, but it seems to me >that if you build something yourself (such as CID) for yourself >and as long as you follow good engineering and construction >practices, you don't have a problem tying it to the phone line >(unless telco comes a knockin'). If you want a production item, >then approval is necessary. Perhaps Andrew Warren can verify this >(I picked on him, because he seems to know quite a bit about alot >of things). However, you can buy a pre-qualified module with the >telco interface. Is it CerTek that has these things ? They are >out there, somewhere around $20 or so. Not sure about the name. > > ------------------------------------------------------------ David Knell Tel: 01843 846558 Fax: 01843 846608 E-mail: dave@dave-ltd.co.uk