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- Newsgroups: sci.electronics
- Path: sparky!uunet!iphase.com!iex!neubauer.iex.com!neubauer
- From: Ed Neubauer <neubauer@neptune.iex.com>
- Subject: Telephone Off Hook Capture Circuit
- Message-ID: <1993Jan22.163111.16667@iex.uucp>
- X-Xxmessage-Id: <A7857E7D420262F4@neubauer.iex.com>
- X-Xxdate: Fri, 22 Jan 93 10: 35:41 GMT
- Sender: usenet@iex.uucp (USENET news)
- Organization: IEX Corp.
- X-Useragent: Nuntius v1.1.1d9
- Distribution: us
- Date: Fri, 22 Jan 1993 16:31:11 GMT
- Lines: 20
-
- I looking for a circuit design toperform the following telephone function:
-
- Security systems which automatically dial out to report a disturbance
- use some sort of telephone line device which automatically "captures"
- the telephone line. At the moment the Security System itself goes
- Off-Hook
- to prepare to dial out, the line capture circuit automatically senses Off
- Hook
- and disconnects any extension telephones that may be off-hook. Then the
- circuit regains a dial-tone by switching the telco line to On Hook for a
- second
- and then goes back Off-hook to allow the security system to dial out.
-
- Any ideas? Thanks,
-
- =========================================
- Ed Neubauer
- Plano Tx
- Email: [uunet!]iex!neubauer or neubauer@iex.com
- =========================================
-