Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!sdd.hp.com!decwrl!sgi!cdp!dcaulkins From: dcaulkins@cdp.UUCP Newsgroups: comp.dcom.modems Subject: Re: Phone line busy indicator Message-ID: <1111100009@cdp> Date: 28 Jun 90 02:46:00 GMT References: <77920518@9006270705.AA09386@ucbvax.berkel> Lines: 7 Nf-ID: #R:9006270705.AA09386@ucbvax.berkel:77920518:cdp:1111100009:000:263 Nf-From: cdp.UUCP!dcaulkins Jun 27 19:46:00 1990 I've seen some advertised in the $30 price range. I've a;lso designed and built some central-office-battery powered ones in which when the line is available a green LED is on; when the line is in use the light is out. Works for 2 - 4 users on one line. Dave C