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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!ames!agate!usenet.ins.cwru.edu!gatech!news.ans.net!cmcl2!panix!oppedahl
- From: oppedahl@panix.com (Carl Oppedahl)
- Subject: Re: Phone cutoff on modems with two jacks?
- Message-ID: <C1DEpx.62D@panix.com>
- Keywords: modem relays
- Organization: PANIX Public Access Unix, NYC
- References: <1jt9sgINNq96@life.ai.mit.edu>
- Date: Sun, 24 Jan 1993 18:15:33 GMT
- Lines: 42
-
- In <1jt9sgINNq96@life.ai.mit.edu> mbeck@rice-chex.ai.mit.edu (Mark Becker) writes:
-
-
- >Greetings *
-
- >I have a couple of old 1200 baud modems with two jacks. One jack is
- >labelled 'Line', the other, 'Phone'. When correctly wired up, these
- >modems cut off the telephone when going off-hook.
-
- >Now I've started seeing 2400 baud modems that don't cut off the
- >telephone when going off-hook; they parallel their connections onto
- >the telephone line. This means that if someone wants to shift from
- >voice to data, someone gets an earful of noise. Also, the modem will
- >pick up whatever noise occurs in the room via the 'live' microphone.
-
- >Problem: I'm thinking of purchasing a faster modem. However, when I
- >ask about line/phone jacks, all I get are confused looks from sales
- >critters.
-
- >Two questions for the group:
-
- > Does your v32.bis/v42.bis modem have two jacks?
-
- > If so, does the modem cut off the telephone socket OR does the
- > modem just parallel on the line?
-
- Well, the two different WOrldports I have used (the 2496 and the 9600 MNP)
-
- both have paralleled jacks.
-
- And the ZyXEL U-1496E and Global Village Teleport Gold modems I have
- both have switched jacks.
-
- Hope that helps. If you get lots of answers, you might want to
- summarize and repost.
-
-
- --
- Carl Oppedahl AA2KW (intellectual property lawyer)
- 30 Rockefeller Plaza
- New York, NY 10112-0228
- voice 212-408-2578 fax 212-765-2519
-