Data Sheet

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Data Sheet

Cisco SPA921 1-Line IP Phone with Display

Cisco Small Business IP Phones

Advanced, Affordable, Feature-Rich IP Phone for the Home Office and Business

Highlights

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Full-featured one-line business-class IP phone with display

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Connects directly to an Internet telephone service provider or to an IP PBX

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Speakerphone, caller ID, call hold, transfer, conferencing, and more

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Easy installation with secure remote provisioning, as well as menu-based and web-based

configuration

Comprehensive Interoperability and SIP Based Feature Set

Based on the Session Initiation Protocol (SIP), the Cisco

SPA921 1-Line IP Phone (Figure 1) has

been tested to ensure comprehensive interoperability with equipment from Voice over IP (VoIP)

infrastructure leaders, enabling service providers to quickly roll out competitive, feature-rich

services to their customers.

With hundreds of features and configurable service parameters, the Cisco SPA921 addresses the

requirements of traditional business users while building on the advantages of IP telephony.

Features such as easy station moves and shared line appearances (across local and

geographically dispersed locations) are just some of the many advantages of the SPA921.

Carrier-Grade Security, Provisioning, and Management

The Cisco SPA921 uses standard encryption protocols to perform secure remote provisioning and

unobtrusive in-service software upgrades. Secure remote provisioning tools include detailed

performance measurement and troubleshooting features, enabling network providers to deliver

high-quality support to their subscribers. Remote provisioning also saves service providers the

time and expense of managing, preloading, and reconfiguring customer premises equipment.

Summary of content (7 pages)

PAGE 1
Data Sheet Cisco SPA921 1-Line IP Phone with Display Cisco Small Business IP Phones Advanced, Affordable, Feature-Rich IP Phone for the Home Office and Business Highlights ● Full-featured one-line business-class IP phone with display ● Connects directly to an Internet telephone service provider or to an IP PBX ● Speakerphone, caller ID, call hold, transfer, conferencing, and more ● Easy installation with secure remote provisioning, as well as menu-based and web-based configuration Comprehensive Int
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Data Sheet Figure 1.
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Data Sheet ● Do not disturb (callers hear line busy tone) ● Digits dialed with number auto-completion ● Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers) ● On-hook default audio configuration (speakerphone and headset) ● Multiple ring tones with selectable ring tone per line ● Called number with directory name matching ● Ability to call number using name: directory matching or via caller ID ● Subsequent incoming calls with calling name and number ● Date and time with
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Data Sheet ● Volume control rocking up/down knob controls handset, headset, speaker, ringer ● Standard 12-button dialing pad ● High-quality handset and cradle ● Built-in high-quality microphone and speaker ● Headset jack: 2.5 mm ● Ethernet LAN: 10BASE-T RJ-45 ● 5 VDC universal (100–240V) switching power adapter ● LED test function Regulatory Compliance ● FCC (Part 15, Class B) , CE Mark, A-Tick © 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Data Sheet Security Features ● Password-protected system, preset to factory default ● Password-protected access to administrator and user-level features ● HTTPS with factory-installed client certificate ● HTTP digest: encrypted authentication via MD5 (RFC 1321) ● Up to 256-bit Advanced Encryption Standard (AES) encryption Documentation ● Quick-Start Installation and Configuration Guide ● User Guide ● Administration Guide ● Provisioning Guide (for service providers only) Package Contents ●
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Data Sheet Voice gateway ● SIPv2 - Session Initiation Protocol version 2 (RFC 3261, 3262, 3263, 3264) ● SIP proxy redundancy - Dynamic via DNS SRV, A records ● Reregistration with primary SIP proxy server ● SIP support in NAT networks (including STUN) ● SIPFrag (RFC 3420) ● Secure (encrypted) calling via prestandard Implementation of Secure RTP ● Codec name assignment ● Voice algorithms: ◦ G.711 (A-law and mu-law) ◦ G.726 (16/24/32/40 kbps) ◦ G.729 A ◦ G.723.1 (6.3 kbps, 5.
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Data Sheet Table 2. Cisco Small Business IP Phone Comparison Chart Model Voice Lines Ethernet Ports High- Resolution Graphical Display PoE Support SPA901 1 1 No No SPA921 1 1 Yes No SPA922 1 2 Yes Yes SPA941 4 1 Yes No SPA942 4 2 Yes Yes SPA962 6 2 Color Yes Cisco Limited Warranty for Cisco Small Business Series Products This Cisco Small Business product comes with a 2-year limited hardware warranty with return to factory replacement.