Cisco Systems 1.3.0 manual Figure C-28. User Agent to User Agent Call Waiting Diagram

C-78

VOCAL User Agent		UA Marshal		Redirect Server	VOCAL User Agent		VOCAL User Agent	User
					32.	INVITE		Agent
								to
					33.	200		User
34.	INVITE
								Agent:
35.	200
		36.	ACK					Call
		37.	ACK					Waiting
					38.	BYE
					39.	200
		40.	BYE
41.	BYE
42.	200
		43.	200

Figure C-28. User Agent to User Agent: Call Waiting — Diagram 3