Jeroth:
Hi I have the same problem with Ý Ý Ý Ý on reset but can't communicate or connect even after "AT" is sent. How did you solve the problem?
I just found this thread lucky me, i have exactly the same issues.
EDIT: I got it to work by using a teensy2.0 as a 'bridge' to communicate with the module. Using a USB2Serial to the phone module resulted in nothing.