Modem

[ISITEC_RIEPER]

I use a smart link 56k voice modem that is integrated in my laptop.
Everything works fine. Now I try to control the modem via CVI (send
AT-Commands to the modem for initilization and send data via modem).

Here is my problem:

The modem should be connected to the virtual COM-Port 3. In Control
Panel/Modem/Properties/ it says that the modem is connected to com3 and the
test works fine. But if I try to send AT-Commands to COM 3 it doesn't work.
I cannot open COM3 and I cannot send data to it. Thats why I tried the same
with hyperterminal. I select COM3 and Hyperterminal can find it, but cannot
open it. The same procedure works fine on other computers with other modems.

I thing there must be another way to use a modem that is known by windows
(w2k) and works fine with o
ther applications. Any suggestions ?



Thanks in advance

Norbert Rieper

[bman]

Norbert

Try this small example program to see if you can communicate with your modem through the virtual com port. If this dosn't work, it may give us more of an understanding on why it doesn't.

Brian