Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: msa3b!kevin@gatech.edu (Kevin P. Kleinfelter) Newsgroups: comp.dcom.telecom Subject: Exclusion Modules (Rever Message-ID: <4530@accuvax.nwu.edu> Date: 28 Feb 90 17:15:24 GMT Sender: news@accuvax.nwu.edu Organization: Management Science America, Inc., Atlanta, GA Lines: 23 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 133, Message 4 of 10 In a recent article, Tad Cook posted a description of exclusion modules. These devices allow multiple phones to use the same line, but not at the same time (i.e. when one is off-hook, the other gets an open circuit). What I want is the reverse (inverse?) of this. Assume that I have two single-line phone lines coming into my house. I want to have one single-line phone answer calls on both lines. When one line is in use, the other line should be busied-out. I do NOT want a service from the phone company that sends two lines over one line. I do NOT want a "ring-no-answer" on one line when the other is in use. (The actual problem is more involved than the above, but it can be reduced to the above.) Any info in this area would be appreciated. Kevin Kleinfelter @ Management Science America, Inc (404) 239-2347 gatech!nanovx!msa3b!kevin