Hi Domi,

I have attached another trace containing the following:

- Location Update + Authentication of the MS that will send the SMS (packets 
1-45)
- Sending and receiving an SMS (text: “a5/1”) with encryption set to A5/1 
(packets 46-140)
    - works
- Sending an SMS (text: “a5/3”) with encryption set to A5/3 (packets 141-730)
    - the MS tries to send several times until it gives up. No Ciphering Mode 
Complete is received.
- Switching back to A5/1 and resending the SMS with text "a5/3" (packets 
731-827)
    - works

I hope that helps.

Thanks,
Jan

Attachment: a5_1_3_with_LU_Auth.pcapng
Description: a5_1_3_with_LU_Auth.pcapng

Reply via email to