It takes some effort on the client side to get secure CTI to work, so I would expect the JTAPI app developer to know if the connection is supposed to be secure/unsecure. If the app developer is you, then I would assume un-secure

Depending on whether the UCM user for the CTI connection has the 'Standard CTI Secure Connection' permission set, UCM allows the provider connection on either 0xABC (un-secure) or 0xABD (secure) only. Also note that the CTI Manager service must be running on the UCM node in order to support CTI connection.