[comp.sys.apple] detecting busy signals

V060PX33@UBVMS.BITNET.UUCP (04/28/87)

i have a 1200 baud hayes compatiable modem. it's hook up to a apple super
serial card. Since the modem can not detect (does not have a command for it
anyways) i was wonder if there is a way to write some kind of software to
implement this. By the way, the company that made the modem is mitec. i haven't
contact the company, i don't think they'll help much anyways. they probably just
 put me on hold for three hour.
thanks in advance.

                                                paul

nemesis@UCSCB.UCSC.EDU.UUCP (04/29/87)

depending on your communications software, you can do what I do:
	as most 'host' computers answer in 3 rings, I set the modem
	to wait 25 sec. before it stops waiting for a connect. If
        it does not connect, the modem sends the NO CARRIER message.
	I use AE pro , annd it's modem macros can be written in such
	a way that a particular message from the modem will produce
	different responses: my macros looks ofr on of 2 letters:
		the R in NO CARRIER tells my macros to call upon annother
	duplicate macros, which dials again, and waits for CONNECT or
	NO CARRIER message. on NO CARRIER this macros calls the
	first macros again. on T from CONNECT the macros just stops
	and the computer is now connected to the Host. I have had no
	problems yet, and this system seems to work fine.
		I don't know if other software packages will allow the
	same sort of setup, but it is worth a try.
	I have an apple 300 modem an super serial card. AE pro was
	worth the expense, as it is extreemly fleible and powerful.
	it has all the good stuff ( built in editor, Macros library,
	fully definable terminal parameters, Protocol transfer,
	re-definable keystroke substitutions, Automatic hardware
	configuration....... but the manual IS cryptic.)
		If you need help, write me:
	nemesis@ucscb.ucscc.UCSC.EDU
	and I will be glad to help. a copy of my modem macros is:
	ats7=25m0pd4258023'~TR3''
(this is macros # 0, next is macros #3, called by 0)
	ats7=25m1pd4258023'~TR0''
as you can see the only difference is in the ends, where they
call each-other.

	Michael
		<nemesis@ucscb.ucscc.UCSC.EDU>
		<arti012@ucsci.ucscc.UCSC.EDU>