bill@twg.bc.ca (Bill Irwin) (05/17/91)
We're about to buy one of these for evaluation and I was wondering if anyone has had any experience with them. The price of about CDN$500 seems very reasonable for a modem with these features, but if it is a troublesome modem it is expensive even if it is free. Any experiences? -- Bill Irwin - The Westrheim Group - Vancouver, BC, Canada ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ uunet!van-bc!twg!bill (604) 431-9600 (voice) | Your Computer bill@twg.bc.ca (604) 430-4329 (fax) | Systems Partner
smartin@Canada.lsil.com (Stephen Martin) (05/22/91)
I have a gvc 2400 baud modem with class 5 MNP, it works ok but you can't turn off MNP classes 1-4, and i can't get it to do uucp. -- Stephen Martin ------- LSI Logic Corporation of Canada, Inc. Phone: (416) 620-7400 LSI|LOGIC| Suite 1110, 401 The West Mall, Fax: (416) 620-5005 | | Etobicoke, Ontario, Canada. Email: smartin@lsican.uucp ------- M9C 5J5 or smartin@Canada.lsil.com
root@zswamp.uucp (Geoffrey Welsh) (05/23/91)
In a letter to All, Bill Irwin (bill@twg.bc.ca ) wrote: >We're about to buy one of these for evaluation and I was >wondering if anyone has had any experience with them. The >price of about CDN$500 seems very reasonable for a modem with >these features, but if it is a troublesome modem it is expensive >even if it is free. I had a pair of these for about a week of evaluation, but the models I had were V.32/V.42 (no V.42bis data compression nor V.32bis 14.4 kbps). They were no more difficult to configure than USR's high-speed Couriers (though I had a head start with them because I'd already wrestled with them before and knew what the docs *really* meant whenever they said something cryptic or seemingly pointless), and certainly far easier than a TrailBlazer. Then again, you're less likely to find many people who claim to have the proper configuration and Dialers entry for the GVC. Bottom line: they did what they claimed to be able to do, though it took me a while to figure out how to make them do it. Their features aren't exactly state of the art, either. Nonetheless, they seem decently priced for what they've got and I don't think you're any worse off with the GVC Super Modem 9600 than you'd be with any other modem which offered the same features. -- Geoffrey Welsh - Operator, Izot's Swamp BBS (FidoNet 1:221/171) root@zswamp.uucp or ..uunet!watmath!xenitec!zswamp!root 602-66 Mooregate Crescent, Kitchener, ON, N2M 5E6 Canada (519)741-9553 "He who claims to know everything can't possibly know much" -me
kherron@ms.uky.edu (Kenneth Herron) (05/24/91)
root@zswamp.uucp (Geoffrey Welsh) writes: >In a letter to All, Bill Irwin (bill@twg.bc.ca ) wrote: > >We're about to buy one of these for evaluation and I was > >wondering if anyone has had any experience with them. The > >price of about CDN$500 seems very reasonable for a modem with > >these features, but if it is a troublesome modem it is expensive > >even if it is free. > I had a pair of these for about a week of evaluation, but the models I had >were V.32/V.42 (no V.42bis data compression nor V.32bis 14.4 kbps). I have one RIGHT NOW for evaluation. I've discovered a few problems: 1) The \T idle timeout loads improperly from the saved profile when the modem is reset. The value used is 1/2 of the saved value. No biggie. Technical support didn't know about it until I told them. 2) It sometimes, inconsistently, non-repeatably, won't connect when calling in to a 1200 baud modem. 3) When dialing into a T2500, I sometimes got V.42bis, 9600 baud, trellis coding, and sometimes got V.42bis, 2400 baud, and no trellis. Again, this was non-repeatable and inconsistent. The GVC tech calling my T2500 and the GVC always got 9600/trellis coding. By disabling trellis coding in the GVC, I got 9600 and V.42bis every time (but I didn't try too many times). I've also found the modem to be rather poor. There's no index or table of contents, and typos abound, including things like "&T" where they meant "%T" in a command description. This is nothing an experienced manual spelunker can't get by, though. So, it works but the firmware needs a few more bugs shaken out of it. The tech indicated they could issue an eeprom upgrade to fix \T, so if/when they isolate the other problems they should be fixable too. -- Kenneth Herron kherron@ms.uky.edu University of Kentucky +1 606 257 2975 Department of Mathematics "So this won't be a total loss, can you make it so guys get to throw their mothers-in-law in?" "Sure, why not?"
bill@camco.Celestial.COM (Bill Campbell) (05/24/91)
In <SMARTIN.91May21214349@torsys02_1.uucp> smartin@Canada.lsil.com (Stephen Martin) writes: >I have a gvc 2400 baud modem with class 5 MNP, it works ok but you can't turn >off MNP classes 1-4, and i can't get it to do uucp. I haven't used this particular GVC modem, but I had some bad experiences with their 2400 baud modems a couple of years ago. The problem was that they would overheat and go off into never-never land. As I remember, these units had a solid case with no ventilation holes at all. -- INTERNET: bill@Celestial.COM Bill Campbell; Celestial Software UUCP: ...!thebes!camco!bill 6641 East Mercer Way uunet!camco!bill Mercer Island, WA 98040; (206) 947-5591
bad@flatlin.ka.sub.org (Christoph Badura) (05/26/91)
In <1991May23.220220.27973@ms.uky.edu> kherron@ms.uky.edu (Kenneth Herron) writes: I have 2 SM96Vbis+ for evaluation here and am experiencing similar problems. >1) The \T idle timeout loads improperly from the saved profile when the > modem is reset. The value used is 1/2 of the saved value. No biggie. Mine will double the value of the \T register at random after reset. :-) >3) When dialing into a T2500, I sometimes got V.42bis, 9600 baud, trellis > coding, and sometimes got V.42bis, 2400 baud, and no trellis. Again, > this was non-repeatable and inconsistent. Mine weren't able to hold a V.32, trellis coding connection to several T2500s and one Fury 9600TI (a german made modem which is said to hold a V.32 connection even over rather noisy lines) for longer than a minute (sometime less then 20 seconds on a local call). > By disabling trellis coding in the GVC, I got 9600 and V.42bis every > time (but I didn't try too many times). I've been using this setting with the same result for 2 days. Seems to work reliable. At the moment I have the problem that that the stupid thingie insists on loading \H1 even though I have set \H0 in both profiles thus getting HP ENQ/ACK flow control. Anyone seen this problem? I noticed also that the S23 register doesn't reflect the Baudrate and Parity correctly. I tried 9600 and 19200 with no parity. If I could get them to load the profile correctly i would be quite pleased with them. For what it's worth, ATI1 yields "173" and "V2.5" and ATI4 gives "SM96V+ V.42BIS" and "C-CODE". >I've also found the modem [manual to be rather poor. There's no index or table >of contents, and typos abound, including things like "&T" where they >meant "%T" in a command description. This is nothing an experienced >manual spelunker can't get by, though. My manuals do have an index and a table of contents, but the V.42bis supplement is somewhat contradictionary to the normal manual. I wouldn't compare the handbook with the one for my T2500 but it isn't really bad. chris -- Christoph Badura Karlsruhe, Deutschland bad@flatlin.ka.sub.org +49 721 606137