dial-up server catch-22

Kerry Hoath kerry at gotss.net
Fri Mar 21 11:10:16 EST 2003

Aaron mgetty has this functionality;
mgetty+sendfax that is.
It is called ring twice mode and you use
the -r option in inittab after mgetty or optiosn in
config files see info pages.
On Fri, Mar 21, 2003 at 12:28:12PM +1000, Aaron Howell wrote:
> There was a (now very old) program called getty_ps which did this.
> It had what it called ring back mode where the modem would watch for a call, then a break then another call.
> It'd answer the second call, so long as it came within a certain amount of time.
> The first call would go unanswered (to your answering machine).
> I'm no sure where you'd get it these days, or even if it would still work with the current serial driver in the kernel,
> but thats the only way i know to achieve this.
> Your phone company might be able to provide you with a distinctive ring service,
> and if it can, you could use mgetty to answer a call appropriately
> based on the ring pattern your modem receives (data calls would get answered before the answering machine had time to wake up to the presence of a call,
> and voice calls could be ignored, or, you could do away with the answering machine altogether and answer voice calls with mgetty+voice.
> Regards
> Aaron
> On Thu, Mar 20, 2003 at 08:19:41PM -0600, Gregory Nowak wrote:
> > Hi all.
> > 
> > I have been seriously considering the idea of setting up a dial-up server for myself, in the event that I want to access my machine,
> > but have no access to a network, only to a phone line.
> > 
> > My problem is though that I have an answering machine, and only 1 phone line.
> > 
> > Is there some way to setup init/agetty so that the modem would answer the phone on every other call?
> > 
> > A scenario of what I mean by that is as follows.
> > 
> > 1. I call in, and remotely disable my answering machine.
> > 
> > 2. I call in with a modem this time, and say my server is set to pick up on the 6th ring, which it does.
> > I then login, do whatever I got to do, and end the connection.
> > 
> > 3. I call in again, but the modem knows this is another call, and doesn't pick up.
> > This would give my machine a chance to pick up after 10 rings, so that I can reenable it.
> > 
> > Then, in the future, if I disabled the machine, and let the phone ring 6 times, the modem would pick up.
> > 
> > Then, if I called in once more, it wouldn't pick up, and so on.
> > 
> > Could someone please tell me if what I'm suggesting is possible, and how 
> > I can accomplish it?
> > 
> > Thanks in advance.
> > 
> > Greg
> > 
> > 
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Kerry Hoath:  kerry at gotss.net kerry at gotss.eu.org or  kerry at gotss.spice.net.au
ICQ: 8226547 msn: kerry at gotss.net Yahoo: kerryhoath at yahoo.com.au

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