The Call Trace below displays the 183 Session Progress message sent from the IMG 2020 to the remote gateway on the incoming side in response to the Offer made in the INVITE message sent from the remote gateway. The initial INVITE offered the cryptosuites AES_CM_128_HMAC_SHA1_32, AES_CM_128_HMAC_SHA1_80, and F8_128_HMAC_SHA1_80. The IMG 2020 responds with the first matching cryptosuite (AES_CM_128_HMAC_SHA1_32) that is configured on the IMG 2020.
