Hi,You can take a look at the mobile application patch here https://gitlab.com/francoip/thesis/blob/public/ which allows you to setup in the vty what is the type of encryption supported by the MS.patch/thesis.patch Thank you.2017-12-06 10:33 GMT+00:00 f12.sebastian <f12.sebastian@gmail.com>:HiI am trying to test osmocom-bb/fixeria-Trx.After configuring test-sim the functions for receiver side like the " network selection mode " " select ARFCN" do work.But how to test or configure " Early Classmark Sending" for varying set of encryption (A5/1,2,3,4...).Regards.--