1.5 System Controls and Tools Functions

The following functions provide call state, parameter, and call control library management capabilities. These functions may be used to interface with all signaling systems.

gc_Close( )

closes a previously opened device

gc_CRN2LineDev( )

maps a CRN to its line device ID

gc_ErrorInfo( )

provides error information about a failed function

gc_ErrorValue( )

deprecated: use gc_ErrorInfo( )

gc_GetCallProgressParm( )

retrieves protocol call progress parameters

gc_GetCallState( )

retrieves the state of a call

gc_GetCRN( )

retrieves a call reference number

gc_GetCTInfo( )

retrieves CT Bus time slot information

gc_GetLineDev( )

retrieves a line device associated with an event

gc_GetMetaEvent( )

retrieves the metaevent structure for the current SRL event

gc_GetMetaEventEx( )

retrieves the metaevent structure for the current SRL eventmaps (Windows only)

gc_GetNetworkH( )

deprecated: use gc_GetResourceH( ) if supported by the technology

gc_GetParm( )

retrieves the value of the specified parameter

gc_GetResourceH( )

retrieves a device (network, voice, or media) handle

gc_GetUsrAttr( )

retrieves the user-defined attribute

gc_GetXmitSlot( )

retrieves the network CT Bus time slot number

gc_Listen( )

connects a channel to a network CT Bus time slot

gc_Open( )

deprecated: use gc_OpenEx( )

gc_OpenEx( )

opens a Global Call device and sets a user defined attribute

gc_ResetLineDev( )

resets the line device state and disconnects calls

gc_ResultInfo( )

retrieves information about solicited and unsolicited events

gc_ResultMsg( )

deprecated: use gc_ResultInfo( )

gc_ResultValue( )

deprecated: use gc_ResultInfo( )

gc_SetCallProgressParm( )

overrides protocol default call progress parameters

gc_SetConfigData( )

updates the configuration data

gc_SetEvtMsk( )

deprecated: use gc_SetConfigData( ) if supported by the technology

gc_SetParm( )

sets the default parameters

gc_SetUsrAttr( )

sets an attribute defined by the user

gc_Start( )

starts and initializes all call control libraries

gc_Stop( )

stops call control libraries and releases resources

gc_UnListen( )

disconnects a channel from the network CT Bus time slot

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