davidsen@steinmetz.ge.com (Wm. E. Davidsen Jr) (04/25/89)
One of our communication people is looking at adding a V.32 modem. Can
anyone provide info on available brands and experience? Particularly any
that seem to work with other brands.
Don't tell me about other types of fast modems, that's another topic.
He wants v.32, info, nothing else. We have several brands of 9600 baud
modems here, and none talk "cross brands."
--
bill davidsen (wedu@crd.GE.COM)
{uunet | philabs}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -mewlm@archet.UUCP (William L. Moran Jr.) (04/28/89)
> One of our communication people is looking at adding a V.32 modem. Can > anyone provide info on available brands and experience? Particularly any > that seem to work with other brands. I have a Microcom QX/V.32c 9600 BPS modem, and have used it with other Microcoms and another V.32 modem (I'm not sure what brand the other was). On the plus side: You can't beat these things for interactive use; microcom claims that they can get 38k throughput because of compression; while I doubt this, it is very high. We have gotten some amazing throughput when used for a tlip connection. They really will adjust their speed based on the line quality (i.e. they have some smarts). On the minus side: V.32 modems in general and microcoms in particular seem to be very finicky about connecting (they need to be reset fairly often). We went through 7 microcoms to get 3 which worked. Their infant mortality rate is pretty bad, but their support is pretty good. UUCP seems to have problems with the microcom in particular (I'm not sure why). The microcom seems to have real problems connecting to non v.32 modems at times; sometimes this is so bad that the thing has to be unplugged for a while to get it to work again. Hope this helps. Bill Moran-- arpa: moran-william@cs.yale.edu or wlm@ibm.com uucp: uunet!bywater!acheron!archet!wlm or decvax!yale!moran-william ------------------------------------------------------------------------------- To keep on running, try with all our might, But in the midst of effort faint and fail;
ron@ron.rutgers.edu (Ron Natalie) (04/28/89)
We have been evaluating V.32 modems, we still have a couple that are supposedly on their way to us for evaluation, but these are the ones we have tried... AT&T Multitech UDS Penril We have found no interoperation prolems with these at the V.32 level. The AT&T is a big intelligent thing that was loaned to us, and hence we didn't really consider it. The UDS V.32 we tested is their early, V.32-only product. We've got several of these in near faultless operation on both dialup and leased line use. It doesn't support MNP or any of the slower modem protocols. The thing can be dialed through the ATDT commands or programmed through a LCD memu thing on the front of the modem. UDS has a more expensive modem out now that does support the the slower modem protocols. Multitech makes a modem that looks just like their 2400 baud product but it supports V.32. It is the closest thing to the traditional hobbiest modem (just a few blinking lights and the Hayes command set). It was the cheapest of the ones we've tested so far. The Penril, likewise, is a very nice unit. It also has the full range of modem services up to V.32 and features a nice little front panel configuration menu that you can use in addition to or in lieu of the HAYES style commands. It is very similar in appearance to their recent 9600 baud leased line/dial backup syncronous modems. We've tested all these modems against each other, and the ones that claim MNP and lower speed protocols we tested against our existing VADIC and MICROCOM dialins. So far we haven't found any incompatibilities. We've also called the TYMNET V.32 dialins (which I believe someone mentioned were Concords). We didn't bother to test V.32 modems with list prices greater than $1500. Other V.32 modems out that we know about are the Telebit 2500 and the Digicom. The Telebit 2500 modem is essentially their Trailblazer Plus modem with the additional guts for V.32. The Digicom has a very low price. We weren't able to test these yet because we were unable to get a demo unit yet. We also didn't test the Hayes, because others who had tested it out had pointed out that it wasn't really V.32 compatible. -Ron
ram@tslanpar.UUCP (R. Meesters, Tech Support, Lanpar Toronto Ontario Canada) (05/01/89)
In article <61@archet.UUCP>, wlm@archet.UUCP (William L. Moran Jr.) writes: > > > UUCP seems to have problems with the microcom in particular (I'm not > sure why). > Bill, what kind of problems are you experiencing with the microcoms and UUCP? We are running the modems up here and have gone through problems, but seem to have them solved, and now the modems are screaming along nicely. Regards, -- ------------------------------------------------------------------------------ Richard Meesters | Lanpar Technologies Inc. | "Calling YOU stupid would Toronto, Ontario | be an insult to stupid people" ...attcan!nebulus!tslanpar!ram | - A Fish Called Wanda ------------------------------------------------------------------------------
rja@edison.GE.COM (rja) (05/05/89)
Try the Telebit T2500 which does V.32, V.22, V.22bis, Bell 212, and PEP. Telebit modems have no problem connecting to anyone and at any speed that is supported. The T2500 also supports MNP compression. The 38.4K that Microcom claims is not real for most uses since it is really a 9600 bps modem and all the difference is due to claims of compression which only work when the other modem is also a Microcom of the same model...
bensmith@bixpb (Ben Smith) (05/12/89)
I'll confirm this about the Microcomm. I was evaluating two of them the last few days. I finally was so frustrated with getting reliable line/ring pickup/off-hook that put that back in the box and said to h___ with them. If they can't answer the phone, they don't fit any needs for me. They look like they were made by Mattel, and they act like it too! (Obviously I'm still PO'd at having taken the time to make special cables for them and all.) ---- Disclaimer (of sorts): This is not a review, but if it were I'd say the same thing with more civil words. -ben -- Ben Smith - technical editor | (603) 924-2575 | uunet!bixpb!bensmith BYTE Magazine | | uunet!bixpb!ronin!ben One Phoenix Mill Lane | | Peterborough, NH 03458 | | BIX: bensmith