1 October 2016 HW Initial version 2 November 2016 MS FSM added 3 July 2017 PE Add section and update sequence charts to describe requirement to receive all PH-DATA.ind events Harald Welte hwelte@sysmocom.de HW sysmocom sysmocom - s.f.m.c. GmbH Managing Director Max Suraev msuraev@sysmocom.de MS sysmocom sysmocom - s.f.m.c. GmbH Software Developer 2016 sysmocom - s.f.m.c. GmbH Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". The Asciidoc source code of this manual can be found at http://git.osmocom.org/osmo-gsm-manuals/