nelson@cs.rochester.edu (Bruce Nelson) (12/06/89)
I have been experiencing a problem which has me completely baffled. I have 2 phone lines, one for voice, and one for modem. I run a bbs on the modem line, and use it for outgoing calls to other bbs's, locally, and long distance. I am also president of a users' group which runs another bbs, which I call often. The problem is that I have absolutely no (transmission) problem calling any other bbs, local, or l/d. No user of my bbs ever has problems, including calls from the same modem the user group bbs uses. The only problem is when I call out from my modem to the user group bbs modem, on my modem line. I get lots of <null>} echoed in response to my outgoing characters. If I switch my modem to the "voice" line, I have perfect transmission to the user group bbs. I have tried several modems at my end - I currently have a Supra 2400 on it. I have tried a Promethius 1200, which is the same modem as the user group uses. The problem persists with both of my modems. The phone company did come out and fix a grounding problem, and even changed the line to another pair, and the line tests 100% quiet. They are unable to do anything else. Every combination of my modem to anyone else's seems to be perfect in both directions, except for the one bbs, that bbs modem can call mine ok, and using my voice line to call theirs is successful, which seems to rule out interexchange trunk problems, too. Can anyone give me any insight as to how to cure the problem (other than using the voice line?). Bruce Nelson ...!rochester!kodak!nelson
gt5302b%prism@gatech.edu (WALKER,RICHARD S) (12/07/89)
BALLco, Inc sells a modem noise filter that comes with a money-back guarantee. It costs 30 bucks and seems to work fine for me. Call [404] 979-5900. Richard S. Walker Georgia Tech Research Institute GA Tech Box 35302 swalker@gtri01.gatech.edu (vm) Atlanta, GA 30332 swalker@vms62a.gatech.edu (vms) [404] 894-7161[W] gt5302b@prism.gatech.edu (unix) [404] 352-3726[H] 71021.1544@compuserve.com (cis) The opinions expressed are my own and do not reflect that of my employer.
tad@ssc.UUCP (Tad Cook) (12/11/89)
Anyone have this problem? Sometimes when I call certain BBSs, my 2400 baud modem "hangs". It just sits there spewing out ones and zeroes, and never connects, making a shhhhhh sound, even after I send the on-hook command. Anyone know about this? Should I throw away my otherwise functional off-brand "Swan" modem? Tad Cook tad@ssc.UUCP