Cisco Systems 1.3.0 manual User

C-76

VOCAL User Agent	UA Marshal		Redirect Server	VOCAL User Agent	VOCAL User Agent	User
1. INVITE						Agent
2. 100						to
	3.	INVITE				User
	4.	302				Agent:
	5.	ACK
						Call
	6.	INVITE
						Waiting
	7.	302
	8.	ACK
	9.	INVITE
	10. 180
11. 180
	12. 200
13. 200
14. ACK
	15. ACK

Figure C-26. User Agent to User Agent: Call Waiting — Diagram 1