To send an international text message, you will have to put the country code of the country where you will be sending the text message to. For instance, if you are sending an international text message to US, then you will have to put + 1 and for the UK, you will have to put +44. Check with your mobile service provider about the applicable

If you are going to another country and send a text message to a different country, then you will have to activate international roaming. Appropriate rates will apply, and the money will be refunded once you deactivate the roaming facility. For more information, contact your mobile service provider.