If you can’t receive SMSs from a particular number;
- Re-try sending the SMS. Traffic on the mobile infrastructure may prevent services such SMS being executed
- Try to call the number you are trying to send the SMS to
- If there is a ring tone, the problem could be that you have inserted the number you are trying to send the SMS to on a blacklist. This is a feature of a handset which not all handsets have.
- If there is no ring tone, the problem could be lying with the other number.