Is there an option in sipp to use tls version 1.2

I am using sipp software to test some of the TLS 1.2 related code flow in an SBC. I configured the SBC to use TLS v1.2. But whenever I run sipp client with tls, it exits with the error "Returning EPIPE on invalid socket: 0x1e73060". Searching EPIPE error yields that the connection is terminated on the remote end. Also, on the traces it is seen that for the Client Hello, the TLS protocol version used is 1.0. Whenever I change the configuration on the SBC to use TLSv1.0, everything works fine. Is there an option, either compile time or run-time, to set the TLS version in Sipp ?

Sipp version used is 3.3