I finally got around to connecting up some serial gear to my SVR4 box, wyvern last weekend .
First I connected a VT320 terminal I've got and used the sysadm gui to get a getty running on /dev/tty00. In short, the terminal runs great at 9600bps. Wow! Does that ever bring me back!
Then I tried getting my US Robotics V.everything running; no joy!
I'm not sure whether the problem is a serial port setup issue, a serial cable issue, or a modem issue. I'm checking around for another modem, but I can't find either of the two USR Sportsters I have around. I also have a bunch of serial cables (db9 <--> db25), but I don't know if they are modem cables or null modem cables. I'm also not very clear on setting up serial ports on these old machines anymore. I'll have to hit the books.
In any case, I'll get it working one of these days. Then we have to see if it will work with the MagicJack!
-Tom