frank@odetics.com (Frank Merrow) (03/05/91)
Hi, I am getting more than a little tired of my wife and child picking up the phone in the middle of my modem connection. It seems to me there was "some device" that could detect the modem carrier and would disable the rest of the phone extensions in the house while the modem was in use. What would such a device be called and where would I get one? Frank frank@odetics.com or uunet!odetics!frank
cgordon@vpnet.chi.il.us (gordon hlavenka) (03/07/91)
In article <1991Mar5.004153.13129@odetics.com> frank@odetics.com (Frank Merrow) writes: >It seems to me there was "some device" that could detect >the modem carrier and would disable the rest of the phone >extensions in the house while the modem was in use. What >would such a device be called and where would I get one? Radio Shack sells a gizmo for about $7.50 which will take care of this. The device senses loop voltage, and if the voltage is below a threshold (indicating a phone is offhook) then the instrument connected to this device is not allowed to sieze the phone line. Applications: To kick off the answering machine when you pick up any phone in the house, connect the answering machine through one of these boxes. To protect your modem or FAX, connect _each phone_ through a box, and connect the modem/FAX directly to the line. Notice that this requires a box for every phone in the house. Also be aware that in this configur- ation, you will not be able to "conference" two phones (like when every- one wants to talk to Grandma). I don't know of something to connect to the _modem_ to protect it. -- ----------------------------------------------------- Gordon S. Hlavenka cgordon@vpnet.chi.il.us Disclaimer: Yeah, I said it. So what?