Call Trace - SRTP - Outbound 200 OK

The Call Trace below displays the 200 OK message sent from the remote gateway on the outbound side to the IMG 2020 in response to the Offer made in the INVITE message sent from the IMG 2020. The initial INVITE message from the IMG 2020 offered the cryptosuites AES_CM_128_HMAC_SHA1_32, AES_CM_128_HMAC_SHA1_80, and F8_128_HMAC_SHA1_80. The remote gateway on the outbound leg responded with the first matching cryptosuite (AES_CM_128_HMAC_SHA1_32) that is configured. The remote gateway on the outbound leg then responds with a 200 OK accepting the cryptosuite (AES_CM_128_HMAC_SHA1_32) as the encryption that will be used between the remote gateway on the outbound leg and the IMG 2020. The IMG 2020 then sends the ack and the encrypted RTP data (SRTP) can start to be processed.

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