Which two signaling messages would you see on a network containing both Cisco Skinny and third-party IP phones that are registered to a Cisco UnifiedCommunications Manager? (Choose two.)
A. off hook
B. station invite
C. invite
D. invitation
Which two signaling messages would you see on a network containing both Cisco Skinny and third-party IP phones that are registered to a Cisco UnifiedCommunications Manager?