Hi, GSM48_PDISC_USSD == 0x11 puzzles me slightly. It doesn't match the landscape described in 3GPP TS 24.007 version 12.0.0 Release 12, chapter 11.2.3.1.1, and it seems our osmo code base isn't using it anywhere. Granted, I don't have all reposes cloned here... It has been there ever since the initial checkin of libosmocore. Thanks for any hints, ~Neels -- - Neels Hofmeyr <nhofmeyr@sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschäftsführer / Managing Directors: Holger Freyther, Harald Welte