- 12, 16, 24 or 32 FXS – Simultaneous voice or fax calls on all ports. Advanced local call switching
- Full SIP and T.38 support – Supports the complete range of industry standard VoIP: SIP, H.323, T.38 fax, fax and modem bypass, DTMF relay. Codecs G.729, G.723 etc.
- Secure Toll-Quality VoIP – DownStreamQoS and Voice-over-VPN with adaptive traffic management and shaping for maximum voice quality and secure voice communication
- Complete Access Routing – Two 10/100 Ethernet ports with auto MDI-X. Access router with NAT, Firewall, PPPoE, DHCP, DynDNS, multiple VLANs & VPN with IPsec
- Outstanding Interoperability – Interoperable for voice and T.38 fax with leading SIP service providers, soft-switch vendors and Asterisk IP-PBX