Path: utzoo!news-server.csri.toronto.edu!rutgers!cbmvax!bagate!dsinc!telecom-request From: 74066.2004@compuserve.com (Larry Rachman) Newsgroups: comp.dcom.telecom Subject: Help Needed Locating Voice/Data Modem Message-ID: Date: 14 Mar 91 07:01:05 GMT Sender: Telecom@eecs.nwu.edu Organization: TELECOM Digest Lines: 22 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 203, Message 7 of 13 Some years ago, I remember reading an ad for a product that provided a low speed data link simultaneously with a telephone voice circuit. Now (of course) I need the info and its nowhere to be found. The product looked like an ordinary modem, and connected between a telephone set and a phone line. When a voice call was established between two of these setups, the modems carved out a chunk of the voice bandpass and used it to pass data, at (as I remember) about 300 baud. At the same time, a voice conversation could allegedly take place, with the missing bandpass not degrading the quality that significantly. Of course, the 'standard' used was completely proprietary; the modems could talk only to each other. Since this was before Hayes compatibility was universal, they probably weren't even compatible in that way. I don't know if that particular company is still around, or if someone else nowadays has a similar product. Does anyone out there know of such a product being sold today?? Larry Rachman, WA2BUX 74066.2004@compuserve.com 516-427-8705 (fax)