Unified Communications 500 Pro Series

•   Cisco UC560 - 24 Users / 2 BRI / 4 FXS (UC560-BRI-K9)
• UC560-BRI-K9 Configuration Description:

    24-user licenses
    2 BRI trunks (BRI)
    4 analog ports (FXS)
    3 Layer 2 Gigabit Ethernet Ports
    2 VIC slots for expansion
    Feature licenses for call control, voicemail, and Cisco Unified IP Phones
    Upgradable to 104 users maximum

Cisco UC540 Phone System - Cisco UC540W-BRI-K9

Note: The Cisco UC540 phone system ships preinstalled with a 24 user license. The Cisco UC540 phone system can be upgraded to support up to 32 users by purchasing the additional 8 user license pack. Almost all Cisco phones work with the Cisco UC540 phone system including the: Cisco 7900, 3900, 6900, 8900 series and the Cisco SPA300 / SPA500 series phones.
Cisco UC540 Phone System - UC540W-BRI-K9 Quick Specs:

•     24 User configuration with 2 ISDN Basic Rate Interfaces (BRI), 4 Analog ports (FXS), 8 PoE ports, integrated wireless, 1 VIC slot for expansion
•     SIP trunking support with preset configurations from major carriers
•     Feature licenses for call control, voicemail and Cisco Unified IP Phones
•     Integrated voicemail
•     Automated attendant
•     Basic call center capability
•     Music on hold
•     Integrated wireless