Company ABC has implemented Cisco Meeting Server (CMS) WebRTC feature using CMS Single Combined deployment model. When testing this implementation, they found that users can login using WebRTC but are unable to join a Space meeting and the “Join Call” option for guests is not available.
What is the root cause of this issue?
A. CMS Webbridge is not able to connect to XMPP component
B. TURN media ports are blocked between CMS Webbridge and User PC
C. CMS Webbridge http-redirect configuration is not enabled
D. CMS Webbridge does not trust Callbridge certificate
E. CMS Callbridge cannot connect to XMPP component
B
D doesn’t seem to be correct as according to https://kb.acano.com/content/9/66/en/troubleshooting-web-bridge-connectivity-issues.html in item 4 they mention that “If a user can log in and join a call but a guest cannot, this suggests that there is a problem with the HTTPS connection between the Call Bridge and Web Bridge”. In the question description users are unable to join call.
It seems to me that the question describes the issue in item 3 of the doc and as a result correct answer to be B.