gsgcmd and gsgsmtpd exitcodes:

0	sucessful
1	syntax error, incorrect command line
2	parameter lost

gsgmdd exitcodes:

0	sucessful
1	syntax error, incorrect command line
2	parameter lost
4	gsm interface not implemented

gsgc exitcodes:

0	OK. Command sucessfully completed.
1	Can't connect with server.
2	Protocol error.
3	Message can't be sent.
4	User/password not valid.
