The Cisco SPA504G is a 4-line VoIP phone that includes traditional features such as call forwarding, redialing, speed dialing, transferring calls, conference calling, and accessing voice mail. The SPA504G supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series.
Display: 128 x 64 monochrome LCD graphical display with backlight
Call Appearance: Four voice lines and four independent SIP Registrations
Fixed Feature Buttons: Mute (illuminated), Headset (illuminated), Speakerphone (illuminated), Voicemail, Hold, Settings, and Volume Control
Navigation Keys: 4-way rocking directional knob for menu navigation
Programmable Softkeys: 4 buttons
Button Module Expansion: Supports Cisco SPA500S Attendant Console (32 additional programmable buttons; no display), and the SPA500DS attendant Console (30 additional programmable buttons; with display). Two Attendant Console’s can be added per phone.
Speakerphone: Includes high-quality, 2-way speakerphone
Wall-Mountable: Yes, requires optional Cisco MB100 Wall Mount Bracket
Ethernet Connectivity: Dual Ethernet (10/100) line interface (PC Pass Through & Network Connection)
Headset Port: Includes 2.5mm port
Message Waiting Indicator: Yes
Adjustable Tilt Display: No
Call Logs: 60 entries of each (made, answered, missed calls)
Network: 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])
Supports 802.3af Power-over-ethernet (PoE)
Can also be powered via optional power adapter if PoE is not available on your network (power supply sold separately – see accessories above)
SIP Protocol – Compatible with a wide variety of open source PBX systems or Hosted Cloud Solutions (Vonage Business, Ring Central, Nextiva, 8x8, etc)
SPCP Protocol – Compatible with Cisco Unified Communications 300 and 500 Platform
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UPS Ground - 1-5 days depending on delivery distance (see Ground services map
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