VB 6.0 MSCOMM and long phonenumbers/strings.
Jan Alfastsen
I have some trouble sending more than 40 DTMF tones to my modem in VB 6.0
I use the MSCOMM.Output = "ATDT.........." + vbCr
Now you can ask yourself why send so many DTMF tones???
Well here is what my program has to do:
My program converts a string of characters to DTMF tones.
I have to dial a phonenumber (My switchboard)
and then send DTMF tones for each character to a Wallmounted LED-display.
First i convert each character after the following scheme:
A = 21# ; B = 22# ; C = 23# ; D = 31# ; E = 32# ; F = 33#
G = 41# ; H = 42# ; I = 43# ; J = 51# ; K = 52# ; L = 53#
M = 61# ; N = 62# ; O = 63# ; P = 71# ; Q = 01# ; R = 72#
S = 73# ; T = 81# ; U = 82# ; V = 83# ; W = 91# ; X = 92#
Y = 93# ; Z = 02# ; é = 03# ; è = 04# ; Å = 05# ; Æ = 06#
Ö = 07# ; £ = 08# ; SPACE = 1#
The LED-display holds 21 characters.
This means that I have to send the following to the modem to write HELLO
WORLD:
ATDT0,155,*0,42#,32#,53#,53#,63#,1#,91#,63#,72#,53#,31#,*
^ ^
Dial the switchboard
^ ^
Start Programming
^ ^
Write the string: HELLO WORLD
^^
End Programming
If I wants the display to save the string to NVRAM
I have to add the following to the string: *#1,1111*
If You have any ideas please let me know.
Best Regards
Jan Alfastsen
Hooda Gest
Jan Alfastsen wrote in message ...
I am assuming you don't have a modem to deal with at the display board but
just want to use your modem to send DTMF tones. If so, I would suggest you
increase the Wait for Carrier value and use the semi-colon command to keep
the modem in command modem when through dialing. With that, you can send
several strings. Using the dial command.
The semi-colon is the terminator, as in ATDT123-4567;
This works with my USR modem and I think it's a standard dial command.
Hooda