Cisco Systems SPA9000 manual N T E N T S

C O N T E N T S

		Preface i-xi
		Document Audience	i-xi
		How This Document is Organized				i-xii
		Document Conventions		i-xii
		Related Documentation		i-xiii
		Technical Support i-xiii
		Using the Linksys Voice System
C H A P T E R 1						1-1
		The Linksys Voice System		1-1
		Overview 1-1
		SPA400 SIP-PSTN Gateway and Voicemail						1-2
		Auto-Attendant1-3
		SPA9000 System Features				1-3
		Additional Features When Used with SPA900 Series IP Phones 1-5
		Technology Background		1-6
		Session Initiation Protocol				1-6
		SPA9000 Media Proxy			1-7
		Using the SPA9000 with a Firewall or Router						1-8
		SPA400 SIP-PSTN Gateway				1-8
		Network Address Translation (NAT) 1-9
		NAT Overview		1-9
		NAT Types	1-10
		Simple Traversal of UDP Through NAT						1-10
		SIP-NAT Interoperation				1-11
		SPA9000 Architecture	1-11
		Architectural Components				1-12
		Multicast Addressing and Group Paging 1-13
		Configuration Options			1-14
		Interactive Voice Response					1-14
		Setup Wizard		1-14
		Administration Web Server					1-14
		Local Client Configuration and Registration 1-15
								Linksys SPA9000 Administrator Guide
	Document Version 3.01								iii