NDIS_TAPI_ANSWER (Windows Embedded CE 6.0)

1/6/2010

OID_TAPI_ANSWER uses the NDIS_TAPI_ANSWER structure when it requests the miniport driver to answer the specified call on offer. Optionally, it requests that the miniport driver send the specified user-to-user information to the calling party.

Support for this request is mandatory.

Syntax

typedef struct _NDIS_TAPI_ANSWER { 
  ULONG ulRequestID; 
  HDRV_CALL hdCall; 
  ULONG ulUserUserInfoSize; 
  UCHAR UserUserInfo[1]; 
} NDIS_TAPI_ANSWER, *PNDIS_TAPI_ANSWER; 

Members

• ulRequestID
  [in] Reserved.

• hdCall
  [in] Specifies the miniport driver's handle to the call to be answered. The driver set this handle up when it called NdisMIndicateStatus with the LINE_EVENT_NEWCALL indication.

• ulUserUserInfoSize
  [in] Specifies the size in bytes of the user-to-user information in UserUserInfo. If this member is zero, UserUserInfo should be ignored.

• UserUserInfo
  [in] Specifies a string containing user-to-user information to be sent to the remote party as part of the call accept. User-to-user information is sent only if supported by the underlying network (see OID_TAPI_GET_DEV_CAPS).

Remarks

The MiniportSetInformation function can return one of the following:

• NDIS_STATUS_SUCCESS
• NDIS_STATUS_PENDING
• NDIS_STATUS_TAPI_INVALCALLHANDLE
• NDIS_STATUS_TAPI_INVALCALLSTATE
• NDIS_STATUS_TAPI_RESOURCEUNAVAIL
• NDIS_STATUS_TAPI_USERUSERINFOTOOBIG
• NDIS_STATUS_FAILURE

Upon successful completion of the OID_TAPI_ANSWER request, the miniport driver must be prepared to respond to the OID_TAPI_GET_ID request.

The initiating application must wait for the LINECALLSTATE_CONNECTED indication before actually writing data.

Requirements

Header	ndistapi.h, ntddndis.h
Windows Embedded CE	Windows CE .NET 4.0 and later

See Also

Reference

NDIS Structures
OID_TAPI_ANSWER
MiniportSetInformation
OID_TAPI_GET_ID
OID_TAPI_GET_DEV_CAPS
NdisMIndicateStatus