This API is an XML interface to the Clickatell gateway. It is a simple way to integrate legacy systems with SMS. It provides interoperability amongst heterogeneous systems because it is language independent. It supports batch sending, delay delivery, delivery acknowledgements and sender ID. XML also provides support for extended length messages, converters for ringtones and logos, and allows for prioritised message queuing and gateway escalation. All the Clickatell API’s support text, Unicode, binary SMS and flash messaging, providing a way to send SMS messages around the world to clients, staff or user-database. Clickatell covers over 819 networks in more than 220 countries. Connecting you to the wireless world through simple integration while offering customization and personalization.