A collaboration engineer Is troubleshooting an Issue with Jabber client logins on the Internal network. Users are receiving a certificate error message that Jabber cannot accept the certificate from t

Question

Options

• ACisco UCM tomcat certificate
• BCisco IM and Presence cup-xmpp certificate
• CCisco UCM CallManager certificate
• DCisco IM and Presence cup certificate
• ECisco IM and Presence tomcat certificate

• A
  3% (1)
• B
  72% (26)
• C
  17% (6)
• D
  8% (3)

Explanation

Since phone-only mode Jabber clients work correctly, the issue is isolated to services provided by Cisco IM and Presence (IM&P), not CUCM itself. Full Jabber clients connect to IM&P for instant messaging and presence via two distinct protocols that each require valid certificates: (B) the cup-xmpp certificate secures the XMPP connection (port 5222/5223) used for IM and presence data, and (E) the IM&P tomcat certificate secures HTTPS connections (port 8443) used for service discovery and login. When either is invalid or expired, Jabber displays a certificate error. The CUCM tomcat (A), CallManager (C), and cup (D) certificates are not involved in the failing IM&P connectivity path.

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