Network vendor is ALU (B10 now).
Phones are: C1206, 5530, N7, 6230i.
Actually, we never that lock closed (locked) :)))
We check *Ciphering Hypotesis* in following way: connect 6230i to TEMS (and later – NEMO) and made some calls. While the call establishment we made some photos of that open lock and then from L3 messages show messages CIPHERING_MODE_CMD and CIPHERING_MODE_COMPLETE.
So it’s not ciphering issue :))
What is this?
Thank for help in advance!!