Intel 05-2409-003 사용자 설명서

47

the gc_ResetLineDev( ) function to reset the line device to the Null state. For more 
information, see the gc_DropCall( ), gc_ReleaseCallEx( ) and gc_ResetLineDev( ) function 
descriptions in the Global Call API Library Reference. 

During call establishment, the remote side may choose to hang up before call setup has been 
completed. The application must be capable of handling error conditions and the lack of complete 
information when requesting call information. 

The GCEV_DETECTED event is not supported. If the host application has not received a 
GCEV_OFFERED event when the call is disconnected by the remote side, the host application will 
not receive any event. If the host application has already received a GCEV_OFFERED event, it 
receives a GCEV_DISCONNECTED event when the call is disconnected. 

This section shows various asynchronous inbound call scenarios. For call scenarios used by a 
specific signaling protocol, check the Global Call Technology Guide for that technology. 

Figure 5 shows a basic asynchronous call scenario for an incoming call. 

Application

GlobalCall

Library/

Technology

Network

GCEV_ACCEPTED

GCEV_OFFERED

GCEV_ANSWERED

Incoming Call

(All Information

Received)

gc_GetCallInfo(DESTINATION_ADDRESS)

gc_GetCallInfo(ORIGINATION_ADDRESS)

(Sufficient Information Received)

gc_AcceptCall()

gc_AnswerCall()

Alerting

Call Answered