Cisco Systems SPA922 manual Data Networking, Voice, Linksys Phone Comparison Chart

Linksys

A Division of Cisco Systems, Inc.

121 Theory

Irvine, CA 92617 USA

E-mail: sales@linksys.com

Web: www.linksys.com

Linksys products are available in more than 50 countries, supported by

12 Linksys Regional Offices throughout the world. For a complete list of local Linksys Sales and Technical Support contacts, visit our worldwide website at www.linksys.com

PRODUCT DATA

BUSINESS SERIES

Data Networking

MAC Address	(IEEE 802.3)
IPv4	Internet Protocol v4 (RFC 791), upgradeable to v6 (RFC 1883)
ARP	Address Resolution Protocol
DNS	A Record (RFC 1706), SRV Record (RFC 2782)
DHCP Client	Dynamic Host Configuration Protocol (RFC 2131)
ICMP	Internet Control Message Protocol (RFC792)
TCP	Transmission Control Protocol (RFC793)
UDP	User Datagram Protocol (RFC768)
RTP	Real Time Protocol (RFC 1889) (RFC 1890)
RTCP	Real Time Control Protocol (RFC 1889)
DiffServ	(RFC 2475)
Type of Service-TOS	(RFC 791/1349)
VLAN Tagging 802.1p/q	Layer 2 QoS
SNTP	Simple Network Time Protocol (RFC 2030)

Voice

SIPv2—Session Initiation Protocol Version 2 (RFC 3261, 3262, 3263, 3264) SIP Proxy Redundancy—Dynamic via DNS SRV, A Records Re-registration with Primary SIP Proxy Server

SIP Support in Network Address Translation Networks—NAT (including STUN) SIPFrag (RFC 3420)

Secure (Encrypted) Calling via Pre-Standard Implementation of Secure RTP Codec Name Assignment

Voice Algorithms:

G.711 (A-law and μ-law, G.726 (16/24/32/40 kbps), G.729 A, G.723.1 (6.3 kbps, 5.3 kbps) Dynamic Payload Support

Adjustable Audio Frames Per Packet DTMF—In-band and Out-of-Band (RFC 2833) (SIP INFO) Flexible Dial Plan Support with Inter-Digit Timers

IP Address/URI Dialing Support

Call Progress Tone Generation Jitter Buffer—Adaptive Frame Loss Concealment

VAD—Voice Activity Detection with Silence Suppression Attenuation/Gain Adjustments

MWI—Message Waiting Indicator Tones

VMWI—Voice Mail Waiting Indicator—Via NOTIFY, SUBSCRIBE Caller ID Support (Name and Number)

Third Party Call Control (RFC 3725)

Linksys Phone Comparison Chart

Model	Voice Lines	Ethernet	High-Resolution	Power over Ethernet
		Ports	Graphical Display	Support
SPA901	1	1	No	No
SPA921	1	1	Yes	No
SPA922	1	2	Yes	Yes
SPA941	2 to 4	1	Yes	No
SPA942	2 to 4	2	Yes	Yes
SPA962	6	2	Yes, Color	Yes

Check the product package and contents for specific features supported. Specifications are subject to change without notice.

Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

Copyright © 2008 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.

8022020NC-KO Model: SPA922