Default lineSendUSSD

Has anyone successfully use the function lineSendUSSD to send USSD commands ??

Iīve tried and I donīt get any error but using the program atdbg I only see that nothing happens, the modem doesnīt send anything.

Now Iīm trying to send AT commands directly to the modem but I would like to know if itīs possible to use the functions for USSD that comes in the Extended TAPI. :shock:

Thanks in advance.