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Reply To: SDCCH Drop Ciphering phase_NSN

#67796
ciph
Guest

Hi Pix,

SDCCH Drop trace, only show MAIN phases like Basic Assignment / Ciphering / MM signaling / Relase…

Ciphering Flow:
MSC > BSC : Ciphering Mode Command
BSC > BTS : Enctyption Command
BTS > MS : Ciphering Mode Command
MS > BSC : Ciphering Mode Complete
BSC > MSC : Ciphering Mode Complete

But we cannot see where/which above message fail exactly.