To all of you who are still having problems sending out sms-es, you can try the following fix and see if it works.

Before you start you need to know the SMS service centre number of your operator. Find that out.

Step 1 - Checking what number is set as your SMS service centre number

Launch your iPhone keypad and type -

*#5005*7672#
Press Call

You will get a response that tells you the number that has been set as your SMS service centre number. In all probability, that number is missing a digit or is wrong.

Step 2 - Erasing the incorrect SMS service centre number

On your iPhone keypad, type -

##5005*7672#
Press Call

You will get a response that tells you that the service centre has no address or something to that effect. It means it has been erased.

Step 3 - Setting the correct the SMS service centre number

On your iPhone keypad, type -

**5005*7672*+nnnnnnnnn#
Press Call

Note - nnnnnnn is the number of the SMS service centre number that you need to find out in the first place.

You should get a response telling you the number has been set. If the response says No Address, you can use Step 1 to check the number.

Hope this helps.