Lets say you wish you make your application to attempt to make a call in Blackberry. This is how you do it.PhoneArguments pa = null;pa = new PhoneArguments(PhoneArguments.ARG_CALL,"67838763520");Invoke.invokeApplication(Invoke.APP_TYPE_PHONE, pa);The bolded part is the number you wish to make a call to.You might also want to check for any active calls before making a call. So …