Setup SSL session resumption
SSL/TLS standards define two methods of session resumption -- state-based and stateless. Stateless mechanism has been introduced in '2008 with RFC 4507 (superceded by RFC 5077) as part of TLS family of protocols.
To resume a session in a state-based way you need to call TElSSLClient.Resume method.
To resume a session in a stateless way you need to set TElSSLClient.Extensions.StatelessTLS property to true.
Both methods assume that the used instance of ElSSLClient component was previously used for successful SSL/TLS session with the same server.