zhahai@gaia.UUCP (02/02/87)
I just got a Qubie modem, 2400 bps external Hayes Compatible. It has all the right features, has been reccommended by various people, and has the great price of $229 delivered UPS (credit card phone order, 5 days). It would seem to be wonderful except for one thing: it doesn't work very well at 2400 bps, in fact not at all (except once). Luckily there is a 30 day money back guarantee. Given the high regard so many people have of this modem, and the fact that it is completely terrible (not bad, terrible) for me, I hesitate to just return it an order another brand without the generous return policy, since I suspect my phone line or some such. I would appreciate any suggestions for diagnosing and fixing the problem. (Then I will return it if I cannot fix things). Lemon: I tried another borrowed unit of same type, same result. Line: I have used the line for 2 years with Anchor MK XII and Hayes 1200 (both 1200 bps), and it still works with the Hayes (Anchor gone). Power: Filtered, surge/spike suppressed, 120 V. Computer, software: (IBM PC, procomm) no change, well used. RFI: I bought an AT&T RFI filter for the phone line, no effect. Other end: I have tried a number of 2400 modems of various makes, for Compuserve, Telenet, Unix system, BBS's, etc. None of these work at 2400 at all (except once, when I got a never to be repeated connection, with no errors at all!). Failure modes: (1) does not respond to answer tone, or (2) responds and claims to connect but spews garbage copiously, re-equalizing and reconnecting every little while, or (3) answers but agrees to communicate at 1200, which it then does with no errors [failed negotiation with 2400 modem at other end] At 1200: It works just fine, unless it does not respond to answer tone (failure mode 1 above). No noise. at 300: It works. Drives me crazy with sloth, but responds to answer tone. Thanks for any suggestions. ~z~ -- Zhahai Stewart {hao | nbires}!gaia!zhahai