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- Path: in2.uu.net!xenitec!zswamp!zswamp!geoff
- From: geoff@zswamp.UUCP (Geoffrey Welsh)
- Newsgroups: comp.dcom.modems
- Subject: Re: call waiting
- Date: Sun, 31 Dec 1995 13:04:39 EST
- Message-ID: <951231.130439.7r3.rnr.w165w@zswamp.UUCP>
- References: <4c49mi$5no@cronkite.seas.gwu.edu>
- Organization: Izot's Swamp
- X-Newsreader: rnr v1.28
-
- logan@gwis2.circ.gwu.edu (Lorraine Ellen Kleinwaks) writes:
- > I recently purchased a U.S. Logic 28.8/14.4 Data/Fax PCMCIA modem. I
- > have call waiting, and when not prefixing dailiing numbers with *70, I
- > should be disconnected by incoming calls. With this new modem, I am not
- > disconnected.
-
- (BTW, I use "*70W", so that the modem dials as soon as the dial tone returns
- and not sooner.)
-
- You can try to encourage that by programming S9 to a lower value; that
- register controls how long (in tenths of a second) the carrier can disappear
- before the modem will conclude that it's been disconencted. However, if the
- call is coming in to you, you get a beep which *might* fool the modem into
- thinking that it's hearing a garbled carrier, i.e. no S9 setting would work.
-
- I believe that it is usually the _other_ end which disconnects because, while
- you are hearing a beep that your modem might mistake for a carrier, the other
- end gets a second of _silence_ which it might mstake for a disconnect.
-
- > I have one phone line and do not have this problem when
- > using my old 2400 external.
-
- The more complex modulations used for 14.4 and especially 28.8, and the fact
- that the modems must sometimes try harder to maintain a link under normal
- conditions, might make these higher speed modems tougher to disconnect.
-
- In other words, I wouldn't depend on call waiting to disconnect me.
-
- --
- Geoffrey Welsh, Senior Developer, InSystems Technologies Inc.
- geoff@zswamp.uucp, [xenitec.on.ca|m2xenix.psg.com]!zswamp!geoff
- We can only hope that people will outgrow the need for government
- before the government finishes outgrowing the need for the people.
-