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Linksys SPA921 IP Phone
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Linksys SPA921 IP Phone
Stylish and functional in design, the SPA-921 IP Phone is ideal for a residence or business using a hosted IP telephony service, an IP PBX, or a large scale IP Centrex deployment.
Our price: CDN$99.99
Out of stock / Discontinued

The SPA-921 leverages industry leading VoIP technology from Linksys to deliver an upgradeable high quality IP phone that is unparalleled in features, value, and support. Standard features on the SPA921 include a high resolution graphical display, speakerphone, and a 2.5 mm head-set port. Linksys SPA-921 Single Line IP Phone With (2) Line Appearances.

The Linksys SPA-921 supports one line with two call appearances and provides support for three way conferencing, attended call transfer, and placing a call on hold to answer an incoming call. The line can be configured as a unique phone number (or extension), or can be configured to share a number that is assigned to multiple phones.

Linksys SPA-921Features

Full featured one-line business class IP phone

Connect directly to an Internet Telephone Service Provider or connect to an IP PBX

Speakerphone. Caller ID. Call Hold, Transfer, Conferencing,and more

Easy installation with secure remote provisioning. Menu based and web based configuration.

Linksys SPA-921 Comprehensive Interoperability and SIP Based Feature Set

Based on the SIP standard, the Linksys SPA-921 has been tested to ensure comprehensive interoperability with equipment from VoIP infrastructure leaders enabling service providers to quickly roll-out competitive, feature rich services to their customers. With undreds of features and configurable sevice parameters, the SPA-921 addresses the requirements of traditional business users while leveraging the advantages of IP telephony. Features such as easy station moves, presence,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 SPA921 uses standard encryption protocols to provide secure remote in-service software upgrades. Linksys 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 hassle and expense of managing, preloading, and re-configuring customer premise equipment (CPE).

Linksys SPA-921 Package Contents

1 - SPA-921 IP Phone, Handset, and Stand

1 - Handset Cord - 56 cm (26 in)

1 - 5v Power Adapter - 1.8 m (6 ft) Cord

1 - RJ45 Ethernet Cable - 1.8 m (6 ft) Cord

1 - Quick Installation Guide

Telephony Features

One Voice Line with Two Call Appearances

Backlit Pixel Based Display: 128x64 Monochrome Graphical Liquid Crystal Display (LCD)

Line Status - Active Line Indication, Name and Number

Menu Driven User Interface

Shared Line Appearance **


Call Hold

Music on Hold **

Call Waiting

Caller ID Name and Number and Outbound Caller ID Blocking

Outbound Caller ID Blocking

Call Transfer - Attended and Blind

Three Way Call Conferencing with Local Mixing

Connects to External Conference Bridge for Multi-party Conferencing

Automatic Redial of Last Calling and Last Called Numbers

On-Hook Dialing

Call Pick Up - Selective and Group **

Call Park and UnPark **

Call Swap

Call Back on Busy

Call Blocking - Anonymous and Selective

Call Forwarding - Unconditional, No Answer, On Busy

Hot Line and Warm Line Automatic Calling

Call Logs (60 entries each): Made, Answered, and Missed Calls

Redial from Call Logs

Personal Directory with Auto-dial (100 entries)

Do Not Disturb (callers hear line busy tone)

Digits Dialed with Number Auto-Completion

Anonymous Caller Blocking

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

Call Number using Name - Directory Matching or via Caller ID

Subsequent Incoming Calls with Calling Name and Number

Date and Time with Intelligent Daylight Savings Support

Call Duration and Start Time Stored in Call Logs

Call Timer

Name and Identity (Text) Displayed at Start Up

Distinctive Ringing Based on Calling and Called Number

Ten User Downloadable Ring Tones - Ring Tone Generator Free from www.linksys.com

Speed Dialing, Eight Entries

Configurable Dial/Numbering Plan Support

Intercom **

Group Paging **

NAT Traversal, including STUN Support

DNS SRV and Multiple A Records for Proxy Lookup and Proxy Redundancy

Syslog, Debug, Report Generation, and Event Logging

Secure Call Encrypted Voice Communication Support

Built-in Web Server for Administration and Configuration with Multiple Security Levels

Automated Remote Provisioning, Multiple Methods. Up to 256 Bit Encryption: (HTTP, HTTPS, TFTP)

Optionally Require Admin Password to Reset Unit to Factory Defaults

** Feature requires support by call server

Hardware Features

Pixel Based Display: 128x64 Monochrome LCD Graphical Display

Dedicated Illuminated Buttons for:

Audio Mute On/Off

Headset On/Off

Speakerphone On/Off

Four Soft Key Buttons

Four Way Rocking Directional Knob for Menu Navigation

Voice Mail Message Waiting Indicator Light

Voice Mail Message Retrieval Button

Dedicated Hold Button

Settings Button for Access to Feature, Set-up, and Configuration Menus

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 millimeter

Ethernet LAN " 10BaseT RJ-45

5 volt DC Universal (100-240 Volt) Switching Power Adaptor

LED Test Function

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 Gateway

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:

o - G.711 (A-law and μ-law) o - G.726 (16/24/32/40 kbps) vo - G.729 A o - 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)

Provisioning, Administration & Maintenance

Integrated Web Server Provides Web Based Administration and Configuration

Telephone Key Pad Configuration via Display Menu / Navigation

Automated Provisioning and Upgrade via HTTPS, HTTP, TFTP

Asynchronous Notification of Upgrade Availability via NOTIFY

Non-intrusive, In-Service Upgrades

Report Generation and Event Logging

Statistics Transmitted in BYE Message

Syslog and Debug Server Records - Configurable Per Line

Physical Interfaces

1 10baseT RJ-45 Ethernet Port (IEEE 802.3)

Handset: RJ-7 Connector

Built-in Speakerphone and Microphone

Headset 2.5 mm Port

Power Supply

Switching Type (100-240v) Automatic

DC Input Voltage: +5 Volts DC at 2.0 Amps Maximum

Power Consumption: 5 Watts

Power Adapter: 100-240v - 50-60Hz (26-34VA) AC Input, 1.8m (6 ft) cord

Indicator Lights/LED

Four (4) Call Appearance/Line Buttons with Associated Tricolor LED

Line LED State Indication: Active, Idle, On Hold, Unregistered

Speakerphone On/Off Button with LED

Headset On/Off Button with LED

Mute Button with LED

Message Waiting Indicator LED

Voicemail Message Retrieval Button

Hold Button

LED Test Function