Vista - .net/c# and modems

10-26-2009

Hi,

I have been searching for a solution to handle analog (data) modems fo
some days now, but nothing seems to be working.
Tried JulMar's (a)tapi classes, something called tapi3lib, and some other
pieces of code from sources like the code project and such.
Also demo/eval versions of licensed software.
All of them fail on making a call. However, all programs are able to
detect/list the modem and query for device capabilities.

The modem is working correctly when tested with hyperterminal
entering AT commands manually. The modem is also properly detected
properly in Windows telephone/modem config.

I've read contradictory information on the web.
People are saying that .net/c# and tapi is simply a no go situation.
Others say, although not supported by Microsoft, it works flawlessly.

Nowhere, I can find a reason why it shouldn't work.

I know I can fall back on the serial port class and handle all AT commands
and responses myself. But that would bring a lot of configuration issues to
the user of the program. I thought Tapi was THE solution to modem
config problems. But now it seems Microsoft completely ignores this api
in the .net environment.

Or am I missing something here?

regards,
Marcel

10-27-2009

"Marcel Overweel" <moverweel@newsgroup> schreef in bericht
news:4ae57b81$0$83239$e4fe514c@newsgroup

Quote:

> Hi,
>
> I have been searching for a solution to handle analog (data) modems fo
> some days now, but nothing seems to be working.
> Tried JulMar's (a)tapi classes, something called tapi3lib, and some other
> pieces of code from sources like the code project and such.
> Also demo/eval versions of licensed software.
> All of them fail on making a call. However, all programs are able to
> detect/list the modem and query for device capabilities.
>
> The modem is working correctly when tested with hyperterminal
> entering AT commands manually. The modem is also properly detected
> properly in Windows telephone/modem config.
>
> I've read contradictory information on the web.
> People are saying that .net/c# and tapi is simply a no go situation.
> Others say, although not supported by Microsoft, it works flawlessly.
>
> Nowhere, I can find a reason why it shouldn't work.
>
> I know I can fall back on the serial port class and handle all AT commands
> and responses myself. But that would bring a lot of configuration issues
> to
> the user of the program. I thought Tapi was THE solution to modem
> config problems. But now it seems Microsoft completely ignores this api
> in the .net environment.
>
> Or am I missing something here?
>
> regards,
> Marcel
>
>

Ok, problem solved.
Was using an usb to com cable/converter and it looks like tapi,
windows or modem didn't like that.
Have moved to another pc with an internal com port and there it is all
working like a charm using the free (a)tapi.net classes from julmar.com

regards,
Marcel

10-27-2009

Marcel,

I see that you seem to have found your problem.

I, too, have found julmar.com code to work well. I am writing a VB example
using it.

Dick

--
Richard Grier, Consultant, Hard & Software 12962 West Louisiana Avenue
Lakewood, CO 80228 303-986-2179 (voice) Homepage: www.hardandsoftware.net
Author of Visual Basic Programmer's Guide to Serial Communications, 4th
Edition ISBN 1-890422-28-2 (391 pages) published July 2004, Revised July
2006.

10-26-2009	#1 (permalink)
Marcel Overweel n/a posts	.net/c# and modems Hi, I have been searching for a solution to handle analog (data) modems fo some days now, but nothing seems to be working. Tried JulMar's (a)tapi classes, something called tapi3lib, and some other pieces of code from sources like the code project and such. Also demo/eval versions of licensed software. All of them fail on making a call. However, all programs are able to detect/list the modem and query for device capabilities. The modem is working correctly when tested with hyperterminal entering AT commands manually. The modem is also properly detected properly in Windows telephone/modem config. I've read contradictory information on the web. People are saying that .net/c# and tapi is simply a no go situation. Others say, although not supported by Microsoft, it works flawlessly. Nowhere, I can find a reason why it shouldn't work. I know I can fall back on the serial port class and handle all AT commands and responses myself. But that would bring a lot of configuration issues to the user of the program. I thought Tapi was THE solution to modem config problems. But now it seems Microsoft completely ignores this api in the .net environment. Or am I missing something here? regards, Marcel
My System Specs

10-27-2009	#2 (permalink)
Marcel Overweel n/a posts	Re: .net/c# and modems "Marcel Overweel" <moverweel@newsgroup> schreef in bericht news:4ae57b81$0$83239$e4fe514c@newsgroup Quote: > Hi, > > I have been searching for a solution to handle analog (data) modems fo > some days now, but nothing seems to be working. > Tried JulMar's (a)tapi classes, something called tapi3lib, and some other > pieces of code from sources like the code project and such. > Also demo/eval versions of licensed software. > All of them fail on making a call. However, all programs are able to > detect/list the modem and query for device capabilities. > > The modem is working correctly when tested with hyperterminal > entering AT commands manually. The modem is also properly detected > properly in Windows telephone/modem config. > > I've read contradictory information on the web. > People are saying that .net/c# and tapi is simply a no go situation. > Others say, although not supported by Microsoft, it works flawlessly. > > Nowhere, I can find a reason why it shouldn't work. > > I know I can fall back on the serial port class and handle all AT commands > and responses myself. But that would bring a lot of configuration issues > to > the user of the program. I thought Tapi was THE solution to modem > config problems. But now it seems Microsoft completely ignores this api > in the .net environment. > > Or am I missing something here? > > regards, > Marcel > > Ok, problem solved. Was using an usb to com cable/converter and it looks like tapi, windows or modem didn't like that. Have moved to another pc with an internal com port and there it is all working like a charm using the free (a)tapi.net classes from julmar.com regards, Marcel
My System Specs

10-27-2009	#3 (permalink)
DickGrier n/a posts	Re: .net/c# and modems Marcel, I see that you seem to have found your problem. I, too, have found julmar.com code to work well. I am writing a VB example using it. Dick -- Richard Grier, Consultant, Hard & Software 12962 West Louisiana Avenue Lakewood, CO 80228 303-986-2179 (voice) Homepage: www.hardandsoftware.net Author of Visual Basic Programmer's Guide to Serial Communications, 4th Edition ISBN 1-890422-28-2 (391 pages) published July 2004, Revised July 2006.
My System Specs

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