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  • Differences between tapiDial and tapiLineDial
  • Limitation
  • Required configuration
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Stored procedures
Dials a phone number for a voice line and chooses the device to use.
WINDEV Note: With a PABX application, each line appears as a device. Therefore, to dial on a phone line, you must:
  1. Choose the current phone line (tapiDevice).
  2. Number (tapiDial).
This is done by tapiLineDial.
Example
// Retrieves the list of TAPI devices
sTAPIList is string = tapiDeviceList()
// Displays the list in a combo box
ListAdd(COMBO_TAPI, sTAPIList)
...
// Selects the TAPI device
IF tapiLineDial(COMBO_TAPI[COMBO_TAPI], EDT_PhoneNumber, "TestLineStatus") <> 0 THEN
Info("Click OK to hang up")
tapiHangUp()
END
PROCEDURE LineStatus(ValueLineStatus is int)
SWITCH ValueLineStatus
CASE tapiLineBusy: Message("The line is busy")
CASE tapiLineConnected: Message("OK, connected")
CASE tapiLineDialing: Message("Dialing in progress")
CASE tapiLineDialTone: Message("Dial tone")
CASE tapiLineDisconnected: Message("The correspondent has hung up")
CASE tapiLineProceeding: Message("Searching for your correspondent")
CASE tapiLineRingBack: Message("Ringing")
END
Syntax
<Result> = tapiLineDial(<Line to Use> , <Number to Dial> [, <Procedure Name> [, <Duration> [, <Custom Parameter>]]])
<Result>: Integer
  • Identifier of call dialed.
  • 0 if an error occurred. The error details are returned by ErrorInfo.
<Line to Use>: Character string
Line or device to use.

Reminder: The list of telephony devices is returned by tapiDeviceList.
<Number to Dial>: Character string (with quotes)
Phone number to dial.
<Procedure Name>: Optional character string (with or without quotes)
Name of WLanguage procedure used to manage the progress of dialing. This procedure has the following format:
PROCEDURE <Procedure name>(<Line status>, <Parameter>)

The first procedure parameter (<Line status>) is an integer that can take the following values:
tapiLineBusyThe line is currently busy.
tapiLineConnectedThe line is connected.
tapiLineDialingDialing in progress.
tapiLineDialToneThe line gets a dial tone.
tapiLineDisconnectedThe correspondent has hung up.
tapiLineProceedingThe call is dialed: searching for the correspondent.
tapiLineRingBackRinging in progress.
The second procedure parameter (<Parameter>) is the custom parameter passed to tapiLineDial.
Caution: this procedure must contain no call to the debugger (no breakpoint, no STOP keyword, no auto-stop expression, ...).
<Duration>: Optional integer or optional Duration
Maximum wait duration (in seconds). Beyond this duration, the function assumes there is no response (no one picked up). This parameter can correspond to:
  • an integer corresponding to the number of seconds,
  • a Duration variable,
  • Versions 23 and later
    the direct indication of duration (1 s or 10 ms for example).
    New in version 23
    the direct indication of duration (1 s or 10 ms for example).
    the direct indication of duration (1 s or 10 ms for example).
This parameter corresponds to 15 seconds by default.
<Custom Parameter>: Any type, optional
Parameter passed to the WLanguage procedure.
Remarks

Differences between tapiDial and tapiLineDial

  • tapiDial is used in a context of a single outgoing call. The identifier of this call is not available.
  • tapiLineDial is used in a context where several simultaneous calls can be found. tapiLineDial returns the call identifier. Therefore, it can be easily handled (to transfer a call for example).

Limitation

tapiLineDial cannot be called in the procedure for call detection (defined by tapiListen).
WINDEVUser code (UMC)

Required configuration

The telephony functions are using the TAPI 2.0 technology. This technology can be used on all the systems.
However, if the system used is Windows NT4, the service pack 4 (or later) must be installed.
Note: The TAPI 3.0 technology (and later) is not supported in this version.
Components
WINDEVReports and Queries wd230com.dll
Windows Mobile wp230com.dll
Minimum required version
  • Version 9
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