Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!decwrl!ucbvax!hplabs!pyramid!prls!gordon From: gordon@prls.UUCP (Gordon Vickers) Newsgroups: sci.electronics Subject: Re: Phone hookups Message-ID: <42491@prls.UUCP> Date: 16 Aug 90 16:53:26 GMT References: <58953@bbn.BBN.COM> Reply-To: gordon@prls.UUCP (Gordon Vickers) Organization: Philips Research Labs, Sunnyvale, California Lines: 24 In article <58953@bbn.BBN.COM> grossman@bbn.com (Martin Grossman) writes: > > 1) There will be no connections to any regular telco phone lines. > 5) The dial (or push buttons) won't be used (ie just the ringer box) > 6) This will be used instead of multiple walky-talkies. > >USE: > 1) One phone will be in the basment and the other 1 or two will be > upstairs. I want to be able to signal (via the ringer) and talk > without running upstairs or shouting. Besides...its a great project. Prehaps you should consider using wireless intercomms. I would shy away from those that use the 49Mhz band or any other RF frequancy. Some are available that simply plug into the wall and transmit the voice over your existing inhouse power lines. These carrier-current intercoms are simple to install: unbox them and plug them into outlets - that's it, no wires to pull, no circuits to make, and they are reliable. DISCLAIMER: I've never used any sort of intercom. Gordon Vickers 408/991-5370 {mips,pyramid|philabs}!prls!gordon Signetics in Sunnyvale,Ca (USA) Earth is a complex array of symbiotic relationships: Every extinction, whether animal, mineral, vegetable, or cultural hastens our own demise.