lineBlindTransfer
The
lineBlindTransfer function performs a blind or single-step transfer of the specified call to
the specified destination address.
LONG lineBlindTransfer(
HCALL hCall,
|
|
LPCSTR lpszDestAddress,
|
|
DWORD dwCountryCode
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);
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|
Parameters
hCall
A handle to the call to be transferred. The application must be an owner of
this call. The call state of
hCall must be
connected.
lpszDestAddress
A pointer to a NULL-terminated string identifying where the call is to be
transferred to. The destination address uses the standard dialable number format.
dwCountryCode
The country code of the destination. This is used by the implementation to
select the call progress protocols for the destination address. If a value of zero
is specified, a default call-progress protocol defined by the service provider
is used.
Return Values
Returns a positive request ID if the function will be completed
asynchronously, or a negative error number if an error has occurred. The
dwParam2 parameter of the corresponding
LINE_REPLY message is zero if the function is successful or it is a negative error
number if an error has occurred. Possible return values are:
LINEERR_INVALCALLHANDLE, LINEERR_INVALCOUNTRYCODE, LINEERR_INVALCALLSTATE,
LINEERR_INVALPOINTER, LINEERR_NOMEM, LINEERR_OPERATIONUNAVAIL, LINEERR_NOTOWNER,
LINEERR_RESOURCEUNAVAIL, LINEERR_INVALADDRESS, LINEERR_UNINITIALIZED,
LINEERR_ADDRESSBLOCKED, LINEERR_OPERATIONFAILED.
Remarks
If LINEERR_INVALADDRESS is returned, no dialing has occurred.
Blind transfer differs from a consultation transfer in that no consultation
call is made visible to the application. After the blind transfer successfully
completes, the specified call is typically cleared from the application's line,
and it transitions to the
idle state. Note that the application's call handle remains valid after the
transfer has completed. The application must deallocate its handle when it is no
longer interested in the transferred call. It uses
lineDeallocateCall for this purpose.
See Also
LINE_REPLY,
lineDeallocateCall
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