Supports 3 SIP profiles through 1 FXS port and 8 FXO ports High-performance NAT router Lifeline support (FXS port will be hard-relayed to FXO port) in case of a power outage 3-way voice conferencing per port Automated & secure provisioning options using TR069 Supports T.38 Fax for reliable Fax-over-IP Failover SIP server automatically switches to secondary server if the main server loses connection Strong AES encryption with security certificate per unit