Call Trace - SRTP - Inbound 200 OK

The Call Trace below displays the 200 OK message sent from the IMG 2020 to the remote gateway in response to the Offer made in the INVITE message sent to the incoming side. 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 responded with the first matching cryptosuite (AES_CM_128_HMAC_SHA1_32) that is configured on the IMG 2020. The IMG 2020 then responds with a 200 OK accepting the cryptosuite (AES_CM_128_HMAC_SHA1_32) as the encryption that will be used between the IMG 2020 and the remote gateway. The remote gateway then sends the ack and the encrypted RTP data (SRTP) can start to be processed.

...