Please download PCBest Robust SIP ActiveX Phone Control first from website:
http://www.pcbest.net/activex.php

After download, you need to use Regsvr32 to register the ocx in DOS command: (Under Win7 or Win2K8, you need to run command window as Administrator in order to use Regsvr32)
c:\> regsvr32 gtsipphone.ocx

Then you can try these samples out.

Please send feedback to support@pcbest.net

Thank you for trying.

