Cisco SPA 303 3-Line IP Phone

Product Description

Cisco SPA 303 3-Line IP Phone


• 3-line business-class IP phone

• Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)

• Dual switched Ethernet ports, speakerphone, caller ID, call hold, conferencing, and more

• Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration

• Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco® Unified Communications 500 Series

Comprehensive Interoperability and SIP-Based Feature Set

Based on SIP, the Cisco SPA 303 3-Line IP Phone with 2-Port Switch has been tested to help 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 SPA 303 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 SPA 303.

The Cisco SPA 303 IP phone can also be used with productivity-enhancing features such as VoiceView Express, and Cisco XML applications when interfacing with the Cisco Unified Communications 500 Series in SPCP mode.

Carrier-Grade Security, Provisioning, and Management

The Cisco SPA 303 uses standard encryption protocols to perform highly secure remote provisioning and unobtrusive in-service software upgrades. 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.

Telephony Features

• Three voice lines

• Pixel-based display: 128 x 64 monochrome graphical liquid crystal display (LCD)

• Line status: active line indication, name and number

• Menu-driven user interface

• Shared line appearance*

• Speakerphone

• Call hold

• Music on hold*

• Call waiting

• Caller ID name and number

• Outbound caller ID blocking

• Call transfer: attended and blind

• Three-way call conferencing with local mixing

• Multiparty conferencing via external conference bridge

• Automatic redial of last calling and last called numbers

• On-hook dialing

• Call pickup: selective and group*

• Call park and unpark*

• Call swap

• Call back on busy**

• Call blocking: anonymous and selective

• Call forwarding: unconditional, no answer, and 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

• Digits dialed with number auto-completion

• Anonymous caller blocking

• Support for Uniform Resource Identifier (URI) (IP) dialing (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 show calling name and number

• Date and time with support for intelligent daylight savings

• Call duration and start time stored in call logs

• Call timer

• Name and identity (text) displayed at startup

• Distinctive ringing based on calling and called number

• 10 user-downloadable ring tones

• Speed dialing, eight entries

• Configurable dial/numbering plan support

• Intercom*

• Group paging

• Network Address Translation (NAT) traversal, including Serial Tunnel (STUN) support

• DNS SRV and multiple A records for proxy lookup and proxy redundancy

• Syslog, debug, report generation, and event logging

• Support for highly secure encrypted voice communications

• Built-in web server for administration and configuration with multiple security levels

• Automated remote provisioning, multiple methods; up to 256 bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol [TFTP])

• Option to require administrator password to reset unit to factory defaults
**Feature requires support by call server.

**Feature activated via feature code.

Hardware Features

• Pixel-based display: 128 x 64 monochrome LCD graphical display

• Dedicated illuminated buttons for:

– Audio mute on/off

– Headset on/off

– Speakerphone on/off

• Four-way rocking directional knob for menu navigation

• Voicemail message waiting indicator light

• Voicemail message retrieval button

• Dedicated hold button

• Settings button for access to feature, setup, 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 mm

• LED test function

• Two Ethernet LAN ports with integrated Ethernet switch: 10/100BASE-T RJ-45

• 5 VDC universal (100-240V) switching included

Regulatory Compliance

• FCC (Part 15, Class B) , UL, CE Mark, A-Tick

Security Features

• Password-protected system, preset to factory defaults

• 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


• Quick-start installation and configuration guide

• User guide

• Administration guide

• Provisioning guide (for service providers only)

Package Contents

• Cisco SPA 303 IP phone, handset, and stand

• Handset cord

• RJ-45 Ethernet cable

• Power adapter

• Quick installation guide

• CD



Table 1 gives specifications for the Cisco SPA 303 3-Line IP Phone.

Table 1. Specifications for the Cisco SPA 303 3-Line IP Phone
Note: Many features are programmable within a defined range or list of options. Please see the SPA Administration Guide for details. The target configuration profile is uploaded to the SPA 303 at the time of provisioning.

Description Specification
Data networking • MAC address (IEEE 802.3)• IPv4 (RFC 791)• Address Resolution Protocol (ARP)• DNS: A record (RFC 1706), SRV record (RFC 2782)• Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)

• Internet Control Message Protocol (ICMP) (RFC 792)

• TCP (RFC 793)

• User Datagram Protocol UDP (RFC 768)

• Real Time Protocol RTP (RFC 1889, 1890)

• Real Time Control Protocol (RTCP) (RFC 1889)

• Real Time Control Protocol – Extended Report ( RTCP-XR) ( RFC 3611 )

• Differentiated Services (DiffServ) (RFC 2475)

• Type of service (ToS) (RFC 791, 1349)

• VLAN tagging 802.1p/Q: Layer 2 quality of service (QoS)

• Simple Network Time Protocol (SNTP) (RFC 2030)

Voice gateway • SIP version 2 (RFC 3261, 3262, 3263, 3264)• SPCP with the Cisco Unified Communications 500 Series• SIP proxy redundancy: dynamic via DNS SRV, A records• Re-registration with primary SIP proxy server• SIP support in NAT networks (including STUN)

• SIPFrag (RFC 3420)

• Highly secure (encrypted) calling via Secure Real-Time Transport Protocol (SRTP)


• Codec name assignment

• Voice algorithms:

• G.711 (A-law and μ-law)

• G.726 (16/24/32/40 kbps)

• G.729 AB

• G.722

• Dynamic payload support

• Adjustable audio frames per packet

• Dual-tone multifrequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO)

• Flexible dial plan support with interdigit timers

• IP address/URI dialing support

• Call progress tone generation

• Jitter buffer: adaptive

• Frame loss concealment

• Voice activity detection (VAD) with silence suppression

• Attenuation/gain adjustments

• Message waiting indicator (MWI) tones

• Voicemail waiting indicator (VMWI), via NOTIFY, SUBSCRIBE

• Caller ID support (name and number)

• Third-party call control (RFC 3725)

Provisioning, administration,
and maintenance
• Integrated web server provides web-based administration and configuration• Telephone keypad configuration via display menu/navigation• Automated provisioning and upgrade via HTTPS, HTTP, TFTP• Asynchronous notification of upgrade availability via NOTIFY• Nonintrusive in-service upgrades

• Report generation and event logging

• Statistics transmitted in BYE message


• Syslog and debug server records: configurable per line

Power supply • Switching type (100-240V) automatic• DC input voltage: +5 VDC at 1.0A maximum
Physical interfaces • Two 10/100BASE-T RJ-45 Ethernet ports (IEEE 802.3)• Handset: RJ-9 connector• Built-in speakerphone and microphone• Headset 2.5-mm port
Indicator lights/LED • Speakerphone on/off button with LED• Headset on/off button with LED• Mute button with LED• Message waiting indicator LED• LED test function
Dimensions (W x H x D) 8.66 x 7.80. x 1.18 in. (220 x 198 x 30 mm)
Unit weight 1.50 lb ( 0.68kg)
Operating temperature 32º ~ 113ºF (0º ~ 40ºC)
Storage temperature -13º ~ 185ºF (-20º ~ 70ºC)
Operating humidity 5% to 95% noncondensing
Storage humidity 5% to 95% noncondensing

Table 2 compares the SPA 303 with other Cisco Small Business 500 Series IP Phones.

Table 2. Cisco Small Business 500 Series IP Phones Comparison

Model Voice Lines Ethernet Ports High-Resolution Graphical Display Power over Ethernet (PoE) Support
SPA 301G 1 1 No No
SPA 303G 3 2 Yes No
SPA 501G 8 2 No Yes
SPA 502G 1 2 Yes Yes
SPA 504G 4 2 Yes Yes
SPA 508G 8 2 Yes Yes
SPA 509G 12 2 Yes Yes
SPA 525G 5 2 Color Yes

Tables 3 and 4 provide ordering information for the Cisco SPA 303 and accessories.

Table 3. Ordering Information

Part Number Description
SPA303-G1 Cisco SPA 303 IP Phone, North America power adapter
SPA303-G2 Cisco SPA 303 IP Phone, Europe power adapter
SPA303-G3 Cisco SPA 303 IP Phone, UK power adapter
SPA303-G4 Cisco SPA 303 IP Phone, Australia power adapter
CON-SBS-SVC1 3-year Small Business Support Service

Table 4. Optional Accessories

Part Number Description
MB100 Wall-mount brackets for SPA 300, SPA 500, CP 500, and SPA 900 Series


Service & Support

The Cisco Small Business Support Service provides three years affordable peace of mind coverage, to help protect your investment and derive maximum value from Cisco Small Business solution. The subscription-based service offers software updates, access to the Cisco Small Business Support Center, online chat support, and expedited hardware replacement.


Cisco Small Business IP Phones are covered by a Cisco 1-year limited hardware warranty with return to factory replacementand a 90-day limited software warranty. In addition, Cisco offers software updates for bug fixes for the warranty term, and telephone technical support at no charge for the first 12 months following the date of purchase.



There are no reviews yet, would you like to submit yours?

Be the first to review “Cisco SPA 303 3-Line IP Phone”