Exam 300-080 Question id=4207 Troubleshoot Call Setup Issues

Which debug command analyzes messages that are produced by SIP during the call setup process in IOS?

A. cisco#show isdn status
B. cisco#debug voip ccapi inout
C. cisco#show sip-ua register status
D. cisco#debug isdn q931
E. cisco#debug ccsip messages
F. cisco#debug voice dialpeer

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