Is there a telephone application for modems that can receive a phone number as a parameter and manage the call for themselves? I ask because in my application I must implement a click2call functionality and may be is a free software out there that I can use and I do not have to fight with TAPI. Thanks!
Here are a few wrappers available to abstract away the complicated parts of using TAPI.
TAPI Wrapper
http://www.vbrad.com/article.aspx?id=61
Normally, the domain of C/C++ programmers, this wrapper code will allow you to skip all the complexity and get to work straight away.
ATAPI - Managed TAPI wrapper for TAPI 2.0
Managed .NET library for interacting with the Microsoft Telephony API (TAPI) 2.x. This library is for creating clients that consume telephony services on Windows XP or better.
WombatDialer does something like that for the Asterisk platform and has powerful APIs - see http://www.wombatdialer.com/manuals/WD_UserManual-chunked/ar01s08.html
It manages the call flow internally (scheduling, error conditions) and sends HTTP notifications of events.
来源：https://stackoverflow.com/questions/2555034/free-modem-dialer