The Cisco Unified Communications 500 Series expands in voice ports through the Cisco Catalyst Express 520 companion switches. Every Cisco Unified Communications 500 Series user configuration comes with 8 phone licenses. For the 16-user configuration to utilize the additional 8 phone licenses, the 8-port Cisco Catalyst Express 520 must be connected to the Cisco Unified Communications 500 Series. For the 32-user Cisco Unified Communications 500 Series solution, the 24-port Cisco Catalyst Express 520 must be connected to the Cisco Unified Communications 500 Series. Similarly, for the 48-user Cisco Unified Communications 500 Series solution, two 24-port Cisco Catalyst Express 520 Switches must be connected to the Cisco Unified Communications 500 Series unit. User count on a given configuration determines the maximum number of users supported. For example, an 8-user configuration does not support more than 8 IP phones, even with the Cisco Catalyst Express 520 connected. If a customer plans to grow beyond 8 ports, the customer should initially procure the 16-user configuration and add the Cisco Catalyst Express 520 when needed to support additional ports.
For more information on Cisco Unified Communications Manager Express and Cisco Unity Express licensing, see Cisco Unified Communications 500 Series User Models.
The addition of the 8-port Cisco Catalyst Express 520 Series Switch with the existing 8 ports on the Cisco Unified Communications 500 Series, it is now possible to support up to 16 IP phones. Figure 1 shows Cisco Unified Communications 500 Series and 8-port CE520 connecting 16 Unified IP Phones.
Figure 1Cisco Unified Communications 500 Series and 8-port CE520 Switch Connecting 16 Unified IP Phones
With the addition of the 24-port Cisco Catalyst Express 520 Series Switch and the existing 8 ports on the Cisco Unified Communications 500 Series, it is now possible to to support up to 32 Unified IP phones. Figure 2 shows Unified Communications 500 Series and 24-port CE520 connecting 32 IP Phones.
Figure 2UC500 Series and 24-port CE520 Switch Connecting 32 IP Phones
The Cisco Unified Communications 500 Series with two Cisco Catalyst Express 520 Series Switches (24-port and 16-port) can support up to 48 IP phones. Figure 3 shows UC500 Series with 24-port and 16-port CE520 connecting 32 IP Phones.
Figure 3UC500 Series with 24-port and 16-port CE520 Switches Connecting 32 IP Phones
