Cisco Systems 1.3.0 manual Voice

C-92

SIP Phone	UA Marshal			Redirect Server	Feature Server:	FNA	SIP Phone	SIP
								IP
1. INVITE								Phone
2. 100
								to
	3.	INVITE						SIP IP
	4.	302
	5.	ACK						Phone:
	6.	INVITE
								Forward
	7.		100
	8.	INVITE						to
	9.		100					Voice
	10.		INVITE					Mail
	11.		302
	12.		ACK
	13.		INVITE
	14.		100
	15.		180

Figure C-30. SIP IP Phone to SIP IP Phone: Forward to Voice Mail — Diagram 1