Supports 12 Expansion Modules providing a combination of up to 360 analog, digital or IP extensions, with capacity for 8 analog trunks or 4 digital trunks (up to 96 T1 channels or 120 E1 channels). Additional analog trunks can be added using IP400 Analog 16 modules.

Features include 60 optional voice compression channels, 2 independently Switched LAN ports, and 100 data channels. An Internal Modem Card can be added to answer up to 12 V.90 analog modem calls.

   * Up to 360 analogue and/or digital extensions
   * 2 variants - up to 120 trunks
   * Conference calls (Up to 2 x 64 parties)
   * 2 independent 10/100Mbps LAN ports for Firewall separation
   * 100 data channels
   * Single WAN
   * 2.048 Mbps
   * V.24/X.21/V.35
   * Frame Relay
   * VoIP (requires optional Voice Compression Module: 5, 10, 20 or 30)
   * External relay driver output
   * Music-On-Hold input Hardware-based data compression
   * Router/ Internet Access/ Firewall/ DHCP server
   * Remote Access Server with Optional Modem 2 module