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- ; FILE ULTRA144.SCR (MSMULTRA.SCR)
- ;
- ; An MS-DOS Kermit script program for dialing the Hayes ULTRA 144 modem, to be
- ; used with MS-DOS Kermit 3.12 or later. The modem is set up for compression,
- ; error correction, all types of fallback, RTS/CTS flow control, fixed
- ; interface speed of 38400, which is the highest support by this modem.
- ;
- ; Authors: Christine M. Gianone, Frank da Cruz; Columbia U, June 1993
- ;
- def errfail echo \%1, hangup, goto fail ; Macro to handle failures.
- if < VERSION 312 errfail {MS-DOS Kermit 3.12 or later required.}
- if eq "\v(system)" "UNIX" if = \v(local) 0 stop 1 You must SET LINE first
-
- define chkerr if fail stop 1 \%1
- define chkok input 3 OK, if fail stop 1 \%1
-
- define max_speed 38400 ; Maximum interface speed
-
- ; Macro to try to get attention of modem's command processor
- ; at the given speed, or if no speed given, at the current speed.
- ; Q0 = Enable result codes, V1 = display result codes as words.
- ;
- define atok -
- if def \%1 set speed \%1, -
- echo Trying \%1..., -
- output ATQ0V1\13, -
- input 3 OK, -
- if success goto gotok
-
- set input echo on ; So we can watch what happens.
- set input timeout proceed ; Allow IF SUCCESS, IF FAILURE.
- set input case ignore ; Use caseless string comparisons
-
- set parity none ; Avoid parity foulups
- set flow none ; Avoid flow control deadlocks
- hangup ; Begin by dropping DTR
- pause 1 ; for one second
-
- echo Configuring Hayes ULTRA 144 on \v(line).
-
- wait 0 DSR ; Check modem signals that should be on
- chkerr {No DSR signal - check your modem and cable}
- wait 0 CTS
- chkerr {No CTS signal - check your modem and cable}
-
- atok ; Try to connect at current speed, whatever it is.
- atok 9600 ; Try to connect at 9600.
- atok 19200 ; 19200...
- atok 2400 ; 2400...
- atok 38400 ; Highest speed permitted.
- stop 1 Can't get modem's attention
-
- :GOTOK
- ;
- ; Now change interface speed to the maximum
- ;
- echo Locking interface speed at \m(max_speed)...
- output ATS87=28\13
- chkok {Can't set modem's speed to \m(max_speed)}
- set speed \m(max_speed)
-
- ; Try 3 times to get OK response to AT command at new speed.
- ;
- set count 3
- :LOOP
- pause
- output AT\13
- input 3 OK
- if success goto ok
- if count goto loop
- Stop 1 Can't communicate with modem at \m(max_speed)
-
- :OK
- ;
- ; Initialize the modem.
- ;
- ; &D2 Hangup if DTR drops, so Kermit's HANGUP command will work
- ; E1 Commands are to be echoed
- ; W1 Enable dialing progress messages
- ; X4 Enable full range of result codes
- ; S95=46 Enables reporting of error control, compression, and protocol
- ;
- output AT &D2 E1 W1 X4 S95=46\13
- chkok {Can't initialize modem}
-
- ; S37=11 Begin modulation negotiations at V.32bis = 14400 bps
- ; N1 Negotiate highest common modulation
- ;
- echo Enabling modulation negotiation...
- output AT S37=11 N1\13 ; Start modulation speed negotiation at 14400
- chkok {Can't enable modulation speed negotiation}
-
- ; Enable hardware flow control
- ;
- echo Enabling hardware flow control...
- output AT &K1 &K3\13 ; Enable RTS/CTS hardware flow control
- chkok {Can't enable RTS/CTS} ; On modem
- set flow rts/cts ; And in Kermit too, but only now
-
- ; Specify treatment of BREAK signal
- ;
- echo Configuring modem to ignore BREAK...
- output AT S82=128\13 ; Make modem pass BREAK transparently
- chkok {Can't become transparent to BREAK}
-
- ; Enable error correction and compression
- ;
- ; &Q5 Enable error correction
- ; S36=7 LAPM (V.42) => MNP => ASB (automatic speed buffering)
- ; S38=1 When DTR from PC goes off, hang up after 1 second
- ; S46=2 Enable compression
- ; S48=7 EC and compression negotiation enabled
- ;
- echo Enabling error correction and data compression...
- output AT &Q5 S36=7 S38=1 S46=2 S48=7\13
- chkok {Can't enable compression and EC}
-
- if def \%1 if not equal "\%1" "=" goto BEGIN
- ;
- ; User only wanted to initialize the modem.
- ; Display configuration.
- ;
- echo Hayes ULTRA 144 initialized OK:
- output AT&V\13
- input 10 OK
- echo
- echo Product code:
- output ATI0\13
- input 4 OK
- end 0
-
- :BEGIN
- ;
- ; User wants to dial.
- ;
- clear ; Clear INPUT buffer.
- set count 5 ; Dialing retry counter, 5 tries allowed.
- echo Dialing \%1 on \v(line) at \v(speed) bps, wait...
- echo
- pause 1
- goto dial ; 1st time, skip pause and Redialing message
-
- :REDIAL
- set alarm 30
- pause 30 ; Wait 30 seconds before redialing.
- if not alarm errfail {Dialing canceled.}
- echo Redialing... ; Message for redialing.
- pause 1
-
- :DIAL
- output ATD\%1\13 ; Dial the number.
- set alarm 90 ; (For detecting keyboard interruptions.)
- if > VERSION 312 clear input ; Clear echo from INPUT buffer.
- if < VERSION 313 clear
- input 30 \10 ; Wait for the linefeeds...
-
- :GETMSG
- input 60 \10 ; ...that surround the response message.
- if success goto gotmsg ; Got a message.
- if alarm errfail {No response from modem.} ; No response in 90 seconds.
- hangup ; User interrupted from keyboard,
- output \13 ; cancel dialing by sending carriage return,
- goto again ; and go try again right away.
-
- :GOTMSG
- reinput 1 CONNECT ; Got a message, was it CONNECT?
- if success goto done ; If so, we're done.
- reinput 1 BUSY ; Line is busy.
- if success goto busy ; Go wait a while and then dial again.
- reinput 1 ERROR ; Command syntax error.
- if success errfail {Dialing command error}
- reinput 1 NO ANSWER ; No answer
- if success errfail {No answer, please try again later}
- reinput 1 NO CARRIER ; Phone didn't answer or no carrier.
- if success goto nocarrier
- reinput 1 NO DIALTONE ; No dialtone when phone taken off hook.
- if success errfail {No dialtone - Is your modem connected to the phone line\63}
- reinput 1 RING ; Phone is ringing
- if success errfail {Somebody is calling this number}
- goto getmsg ; None of the above, get another message.
-
- :BUSY
- if < \v(count) 2 goto quit ; Don't wait 30 seconds if tries are used up.
- echo Line is busy, will dial again in 30 seconds.
- echo Press any key to cancel...
- :AGAIN
- if count goto redial ; Then go redial.
- :QUIT
- errfail {It never answers! I give up.} ; Too many tries.
-
- :DONE ; Connected.
- echo \7 ; Celebrate with a beep.
- define errfail ; Erase local macro definitions...
- define max_speed
- end 0 ; Finished, return success code.
-
- :NOCARRIER
- echo
- echo Connection failed, S86 contains the reason code:
- echo
- output ATS86\63\13
- input 2 \10
- input 2 \10
-
- :FAIL ; Dialing failed, no beep.
- define errfail ; Erase local macro definitions...
- define max_speed
- end 1 ; Return failure code.
-
- ; End of ULTRA144.SCR
-