Cisco SPA 303G

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.

Manufacturer: Cisco
Model: SPA 303

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.


3-line business-class IP phone
Pixel-based display: 128 x 64 monochrome graphical liquid crystal display (LCD)
Line status: active line indication, name, and number
Menu-driven user interface
Call hold
Call waiting
Caller ID name and number
Outbound caller ID blocking
Call blocking: anonymous and selective
Call transfer: attended and blind
Three-way call conferencing with local mixing
Multiparty call conferencing via external conference bridge
Automatic redial of last calling and last called numbers
On-hook dialing
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 (callers hear line busy tone)
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
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 startup
Distinctive ringing based on calling and called number
10 user-downloadable ring tones
Speed dialing, eight entries
Configurable dial/numbering plan support
Group paging
DNS SRV and multiple A records for proxy lookup and proxy redundancy
Syslog, debug, report generation, and event logging


# of RJ45 Ports 2
# of Lines 3
3 way conference Yes
AC Power Supply Included Yes
Backlit-LCD No
Built-In Bluetooth No
Built-In WiFi No
Color Screen No
Cordless CT Handset Support No
Desktop Paging Yes
Display Type Standard
EHS Support No
Gigabit Ethernet Support No
Headset Interface 2.5mm
Mass Provisioning Yes
MWI Support Yes
PoE Compatible No
Power Voltage 110, 220
Protocol Supported SIP, SPCP
Provisioning Method HTTP, HTTPS, TFTP, WEB GUI
Sidecar Compatible No
Speakerphone Half-Duplex
Supported Codecs G.722, G.726, G.729 a/b, G.711 u/a law
Touch Screen No
Type Desktop
Voicemail Button Yes
Wideband Voice Protocol Cisco Wideband
A1comms provides quality VoIP Phone Systems throughout New Zealand, with Head Office located in Christchurch, NZ. Our VoIP Telecommunication solutions include the deployment of cloud or site hosted PBX systems, including 3CX, Asterisk, Elastix, TrixBox, and Fonality. We provide a wide range of quality VoIP phones, headsets, and related equipment from manufacturers like CISCO, Yealink, and Grandstream.