Path: utzoo!attcan!uunet!pyrdc!netsys!vector!nobody
From: Thufir@cup.portal.com
Newsgroups: comp.dcom.telecom
Subject: Connecting Telephone Lines
Message-ID: <telecom-v08i0175m05@vector.UUCP>
Date: 1 Nov 88 04:35:16 GMT
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X-TELECOM-Digest: volume 8, issue 175, message 5

I am looking for information about connecting two telephone lines
together simulating 3-way calling. I have done this by connecting
the wires directly together, and there is a very bad loss of
sound quality between people on other ends of the lines. I have
attempted to hook up very simple amplifier circuits up, and attempting
to separate the signals on the lines into 2 wire pairs for each line.
However I have not had any luck whatsoever, although I believe I've
blown a number of components when someone calls while I'm working on
this. I dont have a super knowledge of electronics, although I do have
enough to put together simple circuits, follow schematics, and not kill
myself in the process. Any suggestions, references, or maybe even
someone who's put together a circuit to do this and is willing to share
the wealth, would be greatly appreciated. I do have 3-way calling on
both lines, but have times when having more than 2 other people on at
once would be conveinent, so suggestions such as "get 3-way calling" are
of no help.
                   Thanks, Dave Archer, thufir@cup.portal.com