LINEOFFERINGMODE_ Constants - Telephony API Programmer's Reference

Custom Search

LINEOFFERINGMODE_ Constants

The LINEOFFERINGMODE_ bit-flag constants describe different substates of an offering call. A mode is available as call status to the application after the call state transitions to offering, and within the LINE_CALLSTATE message indicating the call is in LINECALLSTATE_OFFERING. These values are used when the call is on an address that is shared (bridged) with other stations (see LINEADDRESSSHARING_ Constants), primarily electronic key systems.

LINEOFFERINGMODE_ACTIVE

Indicates that the call is alerting at the current station (will be accompanied by LINEDEVSTATE_RINGING messages), and if any application is set up to automatically answer, it may do so. If the call state mode is ZERO, the application should assume that the value is active (which would be the situation on a non-bridged address).

LINEOFFERINGMODE_INACTIVE

Indicates that the call is being offered at more than one station, but the current station is not alerting (for example, it may be an attendant station where the offering status is advisory, such as blinking a light); software at the station set for automatic answering should preferably not answer the call, because this should be the prerogative at the primary (alerting) station, but lineAnswer may be used to connect the call.

Not extensible. All 32 bits are reserved.

For backward compatibility, it is the responsibility of the service provider to examine the negotiated API version on the line, and to not use these LINEOFFERINGMODE_ values if not supported on the negotiated version. It should be noted that applications which are not cognizant of LINEOFFERINGMODE_ will most likely assume that a call that is in LINECALLSTATE_OFFERING is in LINEOFFERINGMODE_ACTIVE.

The LINEOFFERINGMODE_ACTIVE and LINEOFFERINGMODE_INACTIVE values are used when the call is on an address that is shared with other stations (bridged; see LINEADDRESSSHARING_ Constants), primarily electronic key systems. If the offering call state mode is "active," it means that the call is alerting at the current station (will be accompanied by LINEDEVSTATE_RINGING messages), and if any application is set up to automatically answer, it may do so. If the call state mode is "inactive," the call is being offered at more than one station, but the current station is not alerting (for example, it may be an attendant station where the offering status is advisory, such as blinking a light); software at the station set for automatic answering should preferably not answer the call, because this should be the prerogative at the primary (alerting) station, but lineAnswer may be used to connect the call. If the call state mode is ZERO, the application should assume that the value is active (which would be the situation on a non-bridged address).

Last news from Greatis Software

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

    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)

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

greatis just4fun network