This document builds upon the basic interface specifications for the TextPower client interface for Mobile Originating (MO) and Mobile Terminating (MT) message traffic. This interface allows sending in almost any language on earth and allows messages to be up to 1530 characters in length. On a smart phone, the message, no matter its actual length appears as a single unitary message. Also incorporates Web Management Services, no need for separate documentation if using this post-2016 API specification. CLICK HERE for documentation.