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Cisco SPA512G VoIP/SIP Phone 1-Line, 2 Gigabit Ports, PoE & LCD Display
SKU# AB51619, Model# SPA512G

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SKU # AB51619 | Model # SPA512G

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Cisco SPA512G VoIP/SIP Phone 1-Line, 2 Gigabit Ports, PoE & LCD Display

Rating: 4.0 stars - 1 reviews

The Cisco SPA512G IP Phone is designed to improve and simplify communications across your entire company. From the office to the meeting room, a Cisco SPA512G IP Phone offers enough features for everyone from executives and office workers to staff on your manufacturing floor. Your employees stay productive, and enjoy reliable access to voice and data communications wherever they go, while your costs stay low.

Key Features

  • Full-featured business-class IP phone supporting Power over Ethernet (PoE)
  • Two (2) 10/100/1000 RJ45 Gigabit Ethernet ports
  • Monochrome backlit display for ease of use, aesthetics, and onscreen applications
  • Connects directly to a hosted IP telephony service or an IP private branch exchange (PBX)
  • Wideband audio for unsurpassed voice clarity and enhanced speaker quality
  • Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration
  • Supports up to two Cisco SPA500S 32-Button Attendant Consoles, adding up to 64 additional buttons
  • Supports both Session Initiation Protocol (SIP) for Cisco SPA9000, open source, and hosted telephony solutions and Smart Phone Control Protocol (SPCP) for Cisco Unified Communications 500 Series for Small Business
  • Play back and view personal MP3 files and photos through on-phone application

Voice and Data together
Integrated communications on the Cisco SPA512G IP Phone lets employees make voice calls and access corporate data, such as company directories, quickly and easily, no matter where they happen to be working.

Intuitive, easy-to-use phone features
Employees can take advantage of their Cisco SPA512G phone systems features, including: speakerphone, redial, call transfer, conferencing, paging, intercom, volume control, message-waiting and voicemail indicator lights, mute key, headset use, and call history directories.

Comprehensive interoperability and SIP-based feature set: These phones have been tested to make sure they provide comprehensive interoperability with equipment from SIP-based voice over IP (VoIP) leaders.

Network compatibility
These phones integrate easily with the Cisco Smart Business Communications System, and your Cisco network can automatically recognise the Cisco SPA512G when is is plugged into your network, eliminating the cost and complexity of adding or moving phones.

These affordably priced, reliable, and stylish Cisco SPA512G IP Phones provide an intuitive, rich user experience with wideband audio to connect employees and offices, application support on the phone to enhance productivity, and encryption for enhanced security. The Cisco SPA512G delivers a versatile array of features with investment protection that can help your small business succeed.

Telephony Features

  • One voice line
  • One SIP registration
  • Line status: active line indication, with 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, 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
  • Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers)
  • On-hook default audio configuration (speakerphone and headset)
  • Multiple ring tones
  • 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 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 Simple Traversal of UDP Through NATs (STUN) support
  • DNS SRV and multiple A records for proxy lookup and proxy redundancy
  • Syslog, debug, report generation, and event logging
  • Highly secure call encrypted voice communications 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, Trivial File Transfer Protocol [TFTP])
  • Option to require administrator password to reset unit to factory defaults

Hardware Features

  • Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight
  • Dedicated illuminated buttons for:
    • Audio mute on/off
    • Headset on/off
    • Speakerphone on/off
  • 4-way rocking directional knob for menu navigation
  • Electronic Hook Switch (EHS) Support with selected Plantronics headsets with adapter
  • Voicemail message waiting indicator (VMWI) 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 Gigabit Ethernet ports with integrated Ethernet switch: 10/100/1000BASE-T RJ-45
  • 802.3af-compliant PoE
  • Optional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100)

Regulatory Compliance

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

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
  • SIP over Transport Layer Security (TLS)
  • Secure Real-Time Transport Protocol (SRTP)

Data networking

  • MAC address (IEEE 802.3)
  • IPv4 - Internet Protocol v4 (RFC 791)
  • 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 (RFC 792)
  • TCP - Transmission Control Protocol (RFC793)
  • UDP - User Datagram Protocol (RFC 768)
  • RTP - Real Time Protocol (RFC 1889) (RFC 1890)
  • RTCP - Real Time Control Protocol (RFC 1889)
  • DiffServ - Differentiated Services (RFC 2475)
  • ToS - Type of Service(RFC 791, 1349)
  • VLAN tagging 802.1p/Q - Layer 2 quality of service (QoS)
  • SNTP - Simple Network Time Protocol (RFC 2030)

Voice gateway

  • SIP v2 - Session Initiation Protocol version 2 (RFC 3261, 3262, 3263, 3264)
  • SPCP - Smart Phone Control Protocol with UC500
  • 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 SRTP
  • Codec name assignment
  • Voice algorithms:
  • G.711 (A-law and ¥ì-law)
  • G.726 (16/24/32/40 kbps)
  • G.729 A
  • G.722
  • Dynamic payload support
  • Adjustable audio frames per packet
  • DTMF - Dual-tone multifrequency, 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
  • VAD - Voice activity detection with silence suppression
  • Attenuation/gain adjustments
  • MWI - Message waiting indicator tones
  • VMWI - Voicemail waiting indicator, 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
  • TR-69, TR-104, and TR-111 Provisioning
  • Asynchronous notification of upgrade availability via NOTIFY
  • Nonintrusive in-service upgrades
  • Report generation and event logging
  • Statistics transmitted in BYE message
  • Debug and syslog server records: configurable per line

Power supply

  • Power supply is optional and is purchased separately
  • Models: PA100-NA, PA100-EU, PA100-UK, PA100-AU
  • Switching type (100-240V) automatic
  • DC input voltage: +5 VDC at 2.0A maximum
  • Power adapter: 100-240V50-60 Hz (26-34 VA) AC input

Physical interfaces

  • Two 10/100/1000BASE-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
  • Voicemail message retrieval button
  • Hold button


  • Body Dimensions (W x H x D)
    • 0.42 x 8.35 x 1.73 in. (214 x 212 x 44 mm)
  • Unit weight
    • 2.43 lbs (1.1 kg)
  • Operating temperature @ sea level
    • 32¨¬ ~ 113¨¬F (0¨¬ ~ 40¨¬C)
  • Storage temperature @ sea level
    • -13¨¬ ~ 185¨¬F (-20¨¬ ~ 70¨¬C)
  • Operating humidity @ sea level
    • 5% to 95% noncondensing
  • Storage humidity @ sea level
    • 5% to 95% noncondensing

SKU # AB51619 | Model # SPA512G

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