kdavis@well.UUCP (Ken Davis) (06/01/87)
Have any of you folks out there with at 3b2-300 been able
to configure a Hayes smartmodem bi-directional and use
uugetty? Would appreciate any help, if this is
possible.
--
Ken Davis
{ptsfa, lll-crg, hoptoad}!well!lamc!kdavis kdavis@optimis-pent.arpa
"I spent the coldest winter of my life one summer in San Francisco."
Mark Twainrandy@chinet.UUCP (Randy Suess) (06/01/87)
In article <3192@well.UUCP> kdavis@well.UUCP (Ken Davis) writes: >Have any of you folks out there with at 3b2-300 been able >to configure a Hayes smartmodem bi-directional and use >uugetty? This was discussed at length a year or so ago. Seems a smart modem like the Hayes and uugetty on a 3b2 are incompatible. The 3b2 tty drivers require CD (pin 8) to be hi on the modem for it to send the dial codes. But if you set CD to be hi all the time on the modem, then the 3b2 has no way of knowing when the calling (inbound) party has hung up, and so the next caller on that line is now in on the same session. On chinet, I solved the problem (I use USRobotics Couriers) by building a little black box that sits between the modem and port. It uses a couple of edge triggerd timers to toggle the CD line down and back up on all incoming and outgoing calls. This has worked fine for over 2 years. -randy -- that's the biz, sweetheart..... Randy Suess ..!ihnp4!chinet!randy
brad@bradley.UUCP (06/04/87)
Try the program uutty (I just posted it, with some bug fixes). It
works better than uugetty
Bradley Smith UUCP: {cepu,ihnp4,noao,uiucdcs}!bradley!brad
Text Processing ARPA: cepu!bradley!brad@UCLA-LOCUS
Bradley University PH: (309) 677-2337
Peoria, IL 61625heiby@mcdchg.UUCP (Ron Heiby) (06/05/87)
Extensive experimentation was done within the AT&T UNIX support group on this issue a while back. I don't have a copy of what they finally came up with, but the best was pretty ugly, involving sending modem reset AT codes to the modem within the login string inside /etc/gettydefs. It did work ok, except (something like) the first incoming call after an outgoing call would get dropped immediately. Rumor has it that SVR3.1 uucp will have provision for ignoring the CD lead selectively within the Devices and Dialers files, so modems like the Hayes will work just fine. -- Ron Heiby, heiby@mcdchg.UUCP Moderator: comp.newprod & comp.unix "Small though it is, the human brain can be quite effective when used properly"