- Supports SIP and IMS protocols- Up to 500 routing and call number transformation rules- Dual-redundant Ethernet ports- Dual AC/DC power supplies (optional)- Up to 512 SIP trunks- TLS/SRTP- Voice VLAN- Remote access via the Redstone Cloud*- Management with the Redstone or third-party Remote Device- Management Systems (TR-069, SNMP)- Interoperability with popular SIP servers, such as Cisco Unified CallManager/CUCM, Broadsoft, Microsoft Skype for Business (Lync), and Asterisk/Elastix- Class I lightning protection