8.2 TAPI server

TAPI server (TSP)

Softphone Pro is available with a free TAPI server (TSP) component. It allows to open a TAPI data connection between a personal computer (workstation) and any computer which acts as a server (e.g. Windows server 2019 used as a terminal server).

On the target system (server), it is only necessary to set up the Global IP Telecommunications TSP driver (giptsp64.tsp for 64-bit Windows or giptsp32.tsp for 32-bit Windows).

TAPI server step-by-step

  1. Download the TSP driver (32 Bit or 64 Bit).

  2. Copy the downloaded driver to the folder c:\windows\system32.

  3. If a TSP driver with an older file date already exists, overwrite the old TSP driver with the new one.
    Please note that you might need to restart the system restart to be able to overwrite the TSP driver.

  4. Open the Phone and Modem configuration of Windows OS. You can easily locate the program by entering "phone and modem" into the Windows search box.

  5. Click Add….

  6. Select Global IP Tel TSP (64Bit) in the pop-up window.

  7. Click Add to finish the driver set-up.

  8. Open the registry.

  9. Define a listening port (TCP) and the number of TAPI devices (lines) that fit your needs.
    [HKEY_LOCAL_MACHINE\SOFTWARE\GlobalIPTel\TAPI]
    "TSPListeningPort"="21077"
    "TSPNumberOfLines"="32"
    The registry entries need to be created manually due to the lack of administrative rights of the Phone and Modem tool.

  10. Select Global IP Tel TSP (64 Bit).

  11. Click Configure to set the count of TAPI TSP line devices that you need.
    The TSP makes a maximum of 255 TAPI lines available, as there are restrictions in the maximum number of TAPI line devices in the operating system.
    Important: After changing the number of TAPI lines, you need to restart the server in order to make the change effective.
    Security: All transferred data are encrypted. Allow the server firewall to receive data on the initial listening port (our example: 21077 TCP). Use the TAPI server environment for security aspects in a VPN environment.

  12. Choose the TAPI line in the respective SIP softclient that shall communicate with the TAPI server instance.

  13. Enter your TAPI server address (e.g. your terminal server) including the TCP port.

  14. Select Use server to activate the TAPI server function.