You will need to ensure that your phone is capable of sending multimedia messages, and also that the phone you're sending the message to is capable of receiving MMS messages.

These services are not considered standard text messages and therefore they will be charged a per-message rate these charges will show on your next bill.

To configure your phone for multimedia messages, or for instructions on how you can send one from your phone, please refer to your mobile's instruction manual. The access point details that you will need are located here.