Is SSO for MRA possible while SSO disabled on CUCM

[wsulzer]

Hi
is it possible to enable SSO on Expressway-C without having SSO activated on CUCM?
E.g. Jabber login to CUCM shall be secured with LDAP-authentication only (from LAN/internal), but Jabber login over MRA access (from external/internet) shall be authenticated by IdP / SSO enabled.
Thanks for sharing your experience
Werner

[wsulzer · Accepted solution]

the answer is "no". SSO has to be enabled on CUCM first. Had no success when enabling SSO on Expressway only.