Recommendation ITU-T H.841 is a transposition of Continua Test Tool DG2013, Test Suite Structure&Test Purposes,PAN-LAN-TAN Interface;Part 1:Optimized Exchange Protocol.Agent(Version1.6,2014-01-24),that was developed by the Continua Health Alliance.A number of versions of this specification existed before transposition.This Recommendation includes an electronic attachment with the protocol implementation conformance statements (PICS) and the protocol implementation extra information for testing (PIXIT)required for the implementation of Annex A.