Talk:Transferring Data between Standard Dial-Up Modems

Questioning whether this works
Does this actually work? I was skeptical but decided to try it with a Windows 95 laptop and Ubuntu server. I got to the "Set them both up to use your modems" step, which doesn't to work, but for HyperTerminal (or any telecom communications program) to use your modem, it has to have a dial tone... Maybe I'm missing something... --Iamunknown 18:26, 27 April 2008 (UTC)

...you can set the modem to ignore no dial tone

Missing info
At the time of this writing, this page seems to be missing some information that I would consider to be mandatory. Before trying to use ATD, use either ATX3 (or on a line by itself), or combine them into ATX3D (AT = attention, X3 = use blind dial when dialing, D meaning to dial). Using X3 is mentioned by [CyberPillar ] [: dial-up modems], but since I'm the webmaster of that site, I won't bother to put that info into the main content area of this book. (I choose that simply to avoid self-promotion on a main Wikipedia content page.) I will add this last bit of related warning: If my memory serves me well, then this technique doesn't work with all modem equipment. When it doesn't work, the reason why may be rather challenging to determine. It might be that some modems work with this technique better than others? Or some phone cords? (The later claim of crossed cables being needed might help to explain this.) In other words: just because it works for you now, doesn't mean that it will work for someone else, or that it will work for you later in other circumstances. If it doesn't work, I would suggest trying to switch roles (which model is dialing and which is answering), as perhaps that might be helpful and it will probably be a fairly easy change (just typing different commands, and not needing to adjust physical wiring). On another side note, and possibly to do some more self-promotion in this Discussion section: This guide seems to expect people have HyperTerm. Other software ought to work as well: uses | TOOGAM's software archive: terminal software. I think that this topic (connecting via modems) may be quite worthy of a web page, but isn't sufficiently complex enough to warrant making so much material that it is worth being classified as a Wikibook. That's just my opinion, which admittedly may be rather ignorant. It could have been good info in the late 1990s and maybe even early this millennium, but the info is definitely using technology that is dated, now that people can get faster connections via CAT5, WiFi, and connections to cell phone towers. Using this technique would require using dial-up modems. Many of the modems out there may use older connectors (like an ISA connector to connect to the computer) which are found on fewer and fewer pieces of newer equipment. That is likely to only continue as newer equipment gets even faster bandwidth, and equipment that may be new today becomes cheaper over time. So this topic is largely becoming a historical novelty, at least where I'm at (in the USA), though I presume that will be true in more places around the world as technology keeps improving over time. By the way: I added a heading to the top discussion, which allowed it to show up in the table of contents. Hopefully that helps and doesn't bother anybody. 174.21.246.238 (discuss) 07:47, 30 December 2014 (UTC)

Something Wrong?
I got the right sound coming from the modem but they didn't seem to talk to each other. They timed out with "NO CARRIER" message.

Possible resolution?
Probably resolvable with X3 as I noted above in the Missing Info section. 174.21.246.238 (discuss) 07:47, 30 December 2014 (UTC)

Confirmed
It works! With Windows Vista to Windows '98, two 56k dial-up PC card and PCI card modems. But the rate had to be set really low, 40 bytes per second, though it will probably work much better repeatedly tried and reconfigured. Clark89 (talk) 05:16, 8 March 2009 (UTC)

Crossed or straight cable
What type should be the cable? I've read that most "wall socket <-> phone" cables are crossed. Or maybe it doesn't matter? I've tried crossed cable to directly connect modems but it haven't worked. --Piomar (discuss • contribs) 22:48, 31 March 2014 (UTC)