Home   Index   About
Ultimate Pack


Custom Search
The Call is Answered Elsewhere

This scenario is similar to a call without an owner, but the user answers the phone elsewhere on the line, and this answer is detected by the provider through the hardware. The call is reported as being in the connected state, though it is not connected to any application on the local computer. The call eventually goes idle, at which point each application (monitor as well as all owner applications) must deallocate its handle.

The following steps describe what occurs in a scenario in which a line has only monitoring applications, the service provider is configured to not answer new calls by itself, and a call comes in:

  • The service provider passes the call handle to TAPI.

  • TAPI passes monitor handles to the monitor applications.

  • TAPI determines that the call in the offering (not connected) state and lets the call "sit."

  • The user picks up a ringing downline phone, and the call becomes connected.

  • All monitoring applications are sent a corresponding LINE_CALLSTATE message.

  • The user eventually hangs up the downline phone, and the call reverts to the idle state.

  • The monitor applications are notified the call is idle and deallocate their handles, if they have not already done so.

  • The last deallocation causes a TSPI_lineCloseCall.


Last news from Greatis Software

Nostalgia .Net     Nostalgia .Net     .Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes.  More »

Recommended software for developers

Ultimate Pack for Delphi and C++ Builder     Ultimate Pack     Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price.  More »

Form Designer .Net     Form Designer .Net     Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro!  More »

Print Suite .Net     Print Suite .Net     Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available  More »

Gradient Controls .Net     Gradient Controls .Net     Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available  More »

iGrid     Greatis iGrid     iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors.  More »


All the contacts and projects

Dmitry Vasiliev (just.dmitry)

Related Links

Software for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET

More Online Helps

Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages

Free Tech Secrets ;) Copyright © 2008-2012 Free Tech Secrets ;) greatis just4fun network just4fun