We help IT Professionals succeed at work.

Check out our new AWS podcast with Certified Expert, Phil Phillips! Listen to "How to Execute a Seamless AWS Migration" on EE or on your favorite podcast platform. Listen Now

x

MODEM INTERFACE

etep
etep asked
on
Medium Priority
375 Views
Last Modified: 2010-04-01
I wish to send files via modem (COM2). I use Visual C++ 5.0 under NT4.0. I know to send chars to RS232. But I don't know how to comunnicate with the modem to compose a phone number to send a file to an other distant machine. How can I use the S registers of the modem, and the AT commnands on a US robotic SPORTSTER MESSAGE plus (33600 x2)
Where can I find TAPI (Telephony API)documentation?
Note: I wish only use C functions and not C++ functions, it isn't a real windows application.
Comment
Watch Question

Commented:
Take a look into the TAPI documentation (TAPI=Telephony API).
The TAPI contains many functions to access modem capabilities independent of the vendor
of your modem as long as it is installed correctly. For what purpose do you need access
to the 'S' registers?
( To set a value: ATS<number>=<value>,
  To get a value: ATS<number>?  are the usual ways to get/set the 'S' registers )

Author

Commented:
Edited text of question

Commented:
You should not edit the text of the question after someone has posted a comment or answer ...
It makes it hard for other experts to follow what has already been suggested. Just post a
comment with your changes, it is much better to understand.
To your question: The TAPI documentation is provided with your Visual C++ - just search
for TAPI and you'll get the information. You can use it with a 'console application' - i think that
is what you wanted ( or what did you mean with 'it isn't a real windows application'?)
* Most modem's AT commands are standardised I think.
* DOS application ran under windows can assume they can "access com port directly".  Windows will route I/O through appropriate VxD. (ie do it as you were in DOS)
* TAPI documentation can also be download from ftp://ftp.microsoft.com/developr/TAPI/tapi14.zip It's a zip archive of a Word Document.

Author

Commented:
This zip archive only describe the new TAPI functions. Have you already use the TAPI functions? Where can I find sample or example?
Commented:
Unlock this solution with a free trial preview.
(No credit card required)
Get Preview
Unlock the solution to this question.
Thanks for using Experts Exchange.

Please provide your email to receive a free trial preview!

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.