Need a dial up modem for G3 Beige Tower

Almost any external serial modem should be OK. Such modems often have DB-25F ports. For the connection to the computer, a Macintosh (hardware handshake) modem cable (MiniDIN-8M to DB-25M) will be needed (unless the modem is a model made especially for Mac).

You may want to try an online auction site or a computer shop specialised in older equipment.

Jan

The internal 56K Apple/GV modem card that was a Build-to-Order option for the beige G3s offers the convenience of no additional desktop clutter, no extra power supply to bother with, and nothing to turn ON/OFF. It plugs into the brown slot on the audio or A/V personality card. You can see one listed on this page, but the $99.77 price tag is absurd, in spite of its scarcity now. When I stopped buying them a few years ago, used ones could be purchased for about $35. The internal 56K modem card functioned identically as its external Global Village 56K counterpart. If you have the time to keep checking eBay, you may find an internal Apple/GV 56K card eventually show up for auction. Just be sure that it matches the photo shown on the page I linked. Some sellers (mistakenly or not) identify the software-based "Apple GeoPort" modem card as the 56K modem card - which it definitely isn't. For a reliable 56K external modem, the US Robotics 56K v.90/x2 (model 5689-03) was always my choice for the internet and downloads. The Global Village TelePort 56K v.90 external modems with attached modem cable are also a good choice for the beige G3s. These modems are discontinued, but you can find them showing up at eBay or thrift stores. The current US Robotics v.92 external modem (black color and marketed for PCs) can be used with your beige, but (as Jan wrote) you'll need to find a Mac modem cable (DB-25 to mini-DIN8) for it. Additionally, a custom INIT string must be used to disable a couple of unsupported v.92 features, in order for it to function properly. After much trial and error, I arrived at one that did the trick.

I use an older model Best Data modem similar to this one:
https://www.bestdata.com/store/product.php?productid=16160&cat=10&page=1
these might be hard to find in stores, you may have to mail order, but could try eBay as well. Global Village (now Zoom) modems were typically bundled with the older serial port Macs.
http://www.zoom.com/products/dialup_externalserial.html
You want the Mac-compatible modem with appropriate modem scripts and bundled software for faxing, are you using this in OS 9 or X? You can set up the modem for faxing in OS X also, but the bundled software may have additional features.

There used to be a line test that you could dial up to see if the phone lines in a particular house were capable of supporting 56k speeds, some older lines don't, but that web site info seems to be gone now. But you might get just as fast connections with a 33k modem in practice, it depends. Some other info on 56k modems:
http://www.56k.com/

Is there a possibility of installing a USB PCI card, then you would have the option to use a USB modem.

TM:

I have a dial-up 56K faxmodem I used to use it with my Beige G3. It is still in the box with all the acoutrements. Price tag is still probably on the box as well. Only problem is that I won't be able to get to it until the beginning of July. It is in storage with the rest of my belongings and I'm in the process of moving.

I don't remember what brand it is, maybe a Hayes or US Robotics. I seem to remember it was a well known brand at the time.

Let me know if you are interested in it.

A.