IP Office IP500 Series

Supports 8 Expansion Modules providing a combination of up to 272 analog, digital or IP extensions, with capacity for up to 16 analog trunks or 120 digital trunks (up to 96 T1 channels or 120 E1 channels) using internal daughter cards. Additional analog trunks can be added using external IP400 Analog 16 modules. Features include 128 optional voice compression channels, 2 independently switched LAN ports and 48 data channels.