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  • Operating mode of call transfer
  • Direct transfer
  • Required configuration
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Stored procedures
tapiCompleteTransfer (Function)
In French: telExécuteTransfert
Performs a call transfer (with ability to retrieve the call).
Syntax
<Result> = tapiCompleteTransfer(<Identifier of Call to Transfer> , <Identifier of Target Call>)
<Result>: Boolean
  • True if the call transfer is performed,
  • False otherwise.
<Identifier of Call to Transfer>: Integer
Identifier of the call that will be transferred. This identifier is defined in the WLanguage procedure called by tapiListen.
<Identifier of Target Call>: Integer
Identifier of the call toward which the transfer must be performed. This identifier is defined in the WLanguage procedure called by tapiListen.
Remarks

Operating mode of call transfer

During a call transfer, the caller is informed that a transfer will be performed then the person dials the number toward which the transfer will be performed. If the transfer is accepted, the person validates the transfer.
The principle is the same by programming:
  1. A call is in progress. The identifier of this call is <Identifier of Call to Transfer>.
  2. Dial the number of the person to whom the call will be transferred (tapiLineDial). The identifier of this call is <Identifier of Target Call>. The call to transfer is automatically put on hold.
  3. Case 1: The transfer is accepted: all you have to do is use tapiCompleteTransfer.
  4. Case 2: The transfer is refused. All you have to do is hang up the target call (tapiHangUp). The initial communication is automatically restored.

Direct transfer

You also have the ability to perform a call transfer without worrying about the presence of target correspondent. To do so, use tapiBlindTransfer.

Required configuration

The telephony functions are using the TAPI 2.0 technology. This technology can be used on all the systems.
However, you must:
  • install the service pack 4 (or later) if the system used is Windows NT4.
  • upgrade the system if the system used is Windows 95 (can be downloaded from ftp://ftp.microsoft.com/developr/tapi/tapi2195.zip).
    Address valid at the time of publication.
Caution: the call transfer is not available for all the devices. The call transfer is taken into account for a PABX.
Note: The TAPI 3.0 technology (and later) is not supported in this version.
Components
WINDEVReports and Queries wd230com.dll
Minimum required version
  • Version 9
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