If you need to use TLS connection when connecting to TSAPI service, you can export the AE Services server trust certificates installed on the AE Services server. This certificate can be obtained via AE Services server management Web console. Go to page, select the certificate you want to export, then click on export button. This opens a new page with the certificate in a window. Copy the entire text in the window and add it to the end of the existing CLIENT_INSTALL_PATH/certs/ca/avayaprca.cer that is installed on the client.