Cisco SPA 508G 8-Line IP Phone
8-Line IP Phone with 2-Port Switch, PoE and LCD Display

Features:

Telephony Features

• Four voice lines
• Four Independent SIP Registrations*
• 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 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 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
• 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 Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45
• 802.3af-compliant PoE
• Optional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100)

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)

Technical Specifications:

Documentation

• Quick-Start Installation and Configuration Guide
• User Guide
• Administration Guide
• Provisioning Guide (for service providers only)

Package Contents

• Cisco SPA 508G 8-Line IP Phone, handset, and stand
• Handset cord
• RJ-45 Ethernet cable
• Quick-Start Guide
• CD

Compare Models:

Cisco SPA 500 Series IP Phones
Models	Key Benefits	Ideal Location
	SPA 525G 5-Line IP Phone 5 Line Color backlit display Bluetooth WiFi MP3 and picture player	Executives offices, difficult to wire workspaces, and locations where looks and aesthetics are important
	SPA 509G 12-Line IP Phone with Programmable Keys 12 Line Monochrome backlit display	Managers and administrators who need extra keys for speed dials, shared lines, and monitor lines
	SPA 508G 8-Line IP Phone 8 Line Monochrome backlit display	Managers and administrators who need extra keys for speed dials, shared lines, and monitor lines
	SPA 504G 4-Line IP Phone 4 Line Monochrome backlit display	Power users including sales and customer service representatives who depend on the phone to get their jobs done
	SPA 502G 2-Line IP Phone 2 Line Monochrome backlit display	Employees who require a lot from their phones, but don't need all the buttons
	SPA 501G Basic 8-Line IP Phone 8 Line Paper label	Areas with basic phone needs such as hallways, breakrooms, lobbies, warehouses, factory floors, retail locations, and more
	SPA 500S Expansion Module 32 programmable buttons Multicolored LEDs for illuminated line-status monitoring	Managers, administrators, and operators who want to simplify incoming call handling by quickly directing calls and centrally monitoring lines

Documentation:

Download the Cisco SPA 508G IP Phone Datasheet (PDF).