Send as SMS crg#password#group_title#phone_numbers to 08134443999.
crg = The code needed by the SMS Server to process this request.
password = Your SmartSMSSolutions account password
group_title = The name of the phone group that the phone numbers are to be added
phone_numbers = The phone numbers to be added separated by comma
This process can also be used to create a new group and add phone numbers to it all at once.
The phone numbers will be added to the specified group. A new group will be created if the group name cannot be traced. You will be notified of the result by SMS a few seconds later.