gc_MakeCall() fails IPERR_BAD_PARAM

Hi,

I have a problem while calling the gc_MakeCall() API. It fails with the following error.

12/14 11:52:52.811 [GC_APIERR]: gc_MakeCall(linedev=1, numberstr=SIP:0526726565@82.166.90.3, mode=EV_ASYNC) Failed
GC ERROR: Invalid parameter
CC Name: GC_H3R_LIB
CC ERROR: IPERR_BAD_PARAM

Any idea why?

Thank you.

Mike