Refer to the exhibit.
The exhibit shows an outgoing SIP 401 response message from Cisco Unified Communications Manager to a SIP VoIP service provider gateway.
Which action can the Cisco Unified Communications Manager systems administrator use to change the response to "200 OK"?
Click on the arrows to vote for the correct answerA. B. C. D. E.
Because Right now CUCM challenges the identity of a SIP user agent and must configure digest credentials for the application user in CUCM or you have to disable it for stop challenging by CUCM.
References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/9_0_1/secugd/CUCM_BK_CCB00C40_00_cucm-security-guide-90/ CUCM_BK_CCB00C40_00_cucm-security-guide_chapter_011010.html.