How to change TLS version to 1.2 in RTC 5.0.2
One answer
RTC 5.0.2 is out of support for a long time now. The only supported versions to date are 7.0.2 and later.
As far as I know 5.x and 6.x do not support TLS 1.2 and the only way to get to TLS 1.2 support is upgrading to a supported version. That upgrade also contains the Log4J 2 and other critical security patches.