|TAPIEx ActiveX Control v3.6
The DevSpecificFeature method access the device-specific features.
Feature As PHONEBUTTONFUNCTION, Param as Variant) As Boolean
- The feature to invoke on the line device. This parameter uses the PHONEBUTTONFUNCTION_
- Data block which want to send to the service provider. It can be
String or bytes array.
- If the method succeeds, return TRUE, otherwise return FALSE.
- This operation is part of the Extended Telephony services. It provides access
to a device-specific feature without defining its meaning. This operation
is only available if the application has successfully negotiated a device-specific
This function provides the application with phone feature-button emulation
capabilities. When an application invokes this operation, it specifies the
equivalent of a button-press event. This method of invoking features is device
dependent, as TAPI does not define their meaning. Typically, an application
that relies on these device-specific extensions does not work with other service