henry (08/22/82)
I have two corrections to slinac!derek's comments on modems, both from personal experience. The Racal-Vadic 3451 will, if asked politely via a strapping option, put a signal onto one rs232 pin indicating the speed of an incoming call. You don't need a whole second line to sense this if your terminal interface lets you see a reasonable number of modem-control bits. The Anderson-Jacobson 1259 is an R-V 3451 lookalike; contrary to Derek's comment, it *does* speak 3400 protocol. In fact, it's the same insides; A-J makes R-V's 3451 boards. Also, one comment: the Penril 1200-baud modem, which Derek mentioned, does not give you software-selectable dialout speed. We looked at it and rejected it for that reason.