* 4 Line keys with up to 4 SIP accounts
* 4 XML programmable context-sensitive soft keys,
* Up to 32 call appearances with 24+4 speed-dial/BLF extension keys with dual-color LED
* 240 x 120 Pixel backlit graphical LCD display with up to 8 level grayscale
* Dual switched 10/100/1000 Mbps Gigabit
* Ethernet ports with integrated PoE
* Supports Electronic Hook-Switch (EHS)
* HD wideband audio
* Superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation and excellent double-talk performance
* Built-In personalized application service (e.g., local weather, stock, currencies, etc), flexible LCD content customization using XML Learn More

Unlimited US/CA Business Extension w/ DID Learn More

• VoIP Services (SIP, H.323/H.450)
• PC Soft Phone
• Automated Call Distribution (ACD)
• Centralized Attendant Service
• QSIG and IP Networking
• Conference Room (15 parties)
• PC Admin in Maintenance
• Direct Inward Dialing / Direct Inward System Access (DID/DISA)
• Call Recording
• Mobile Extension
• Call Statistics and Traffic Analysis
• Internal SMS Text Messaging
• Hunt Groups
• Multiple Class of Service with Walking COS
• Internal / External Call Paging
• Door Phone Box
• Least Call Routing (LCR) Learn More

• Easy to install, and designed exclusively for the Cisco® SPA 500 Series IP Phones

• 32 programmable buttons simplify dialing and call transfers

• Multicolored LEDs monitor the status of each configured voice line via Busy Lamp Field (BLF)

• Two attendant consoles can be linked, for a total of 64 buttons Learn More