I have CUCM 11.5su3 with Expressway C and E setup on 8.10.2
Secure Traversal works between the the C & E, TLS enables Non-Secure Neighbor Zone from CUCM to Expressway C All CA singed cert from the E to CUCM.
B2B calls are working and our WebEx calls used to work. After we upgraded to 11.5su3 our Webex calls out to a CMR room do not have video..
I have setup on the Expressway E the DNS zone for WebEx previously and it was working great. When my call goes out Leg 1 is traversal TLS, AES OK 200, Leg 2 goes out the Webex DNS zones, TLS AES OK 200, Leg 3 - 7 none Session 1 Completed with Bandwidth Allocated at 64k..
I get an Inbound TLS negotiation error from 188.8.131.52, Which i believe is WebEx. I feel like my call is going out to Web Ex and the inbound call from Web Ex is not being accepted. When i dial the same room in my Traditional VCS-C/VCS-E environment it works perfect and i see that same IP address on leg three of the call and i get a full 6mb call.
Is it possible that my Neigbor Zone from CUCM not being Secured could cause this?