What are the total number of PSTN interfaces that the UC500 can support?
Depending on the UC500 model or SKU – can have any of the below: • • 4 to 12 FXO ports or 2 to 6 BRI ports (VIC slot can be used to add interfaces in certain model) • T1/E1 VWIC interface card for use in the 8-, 16-, and 32-user UC500 SKUs (VIC slot can be used to add this T1/E1 interface card) • UC500 48-user SKU is also available with integrated T1/E1 interface.