A collaboration engineer is troubleshooting an MOH problem on a Cisco IOS SIP gateway in searching through a debug CCSIP massage output.
Which three parameters in the SIP massages can be used to determine if the call was placed on hold? (Choose three)
A. OPTIONS WITH 301 CALLHOLD
B. INVITE WITH a=INACTIVE
C. INVITE WITH a=SENDONLY
D. OPTION WITH c=INACTIVE
E. c=IN IP4 0.0.0.0
F. BYE WITH A = CALLHOLD
