- 32 FXS ports- 32 concurrent calls- 2 WAN ports- 1U- SIP/MGCP protocols- 500 routing and number manipulation rules- Fax over IP using T.38 & G.711 pass-through- Dual redundant Ethernet ports- Dual DC/AC power supplies available- PSTN failover- TLS/SRTP- Auto provisioning- 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 Call Manager/CUCM, Broadsoft, Microsoft Skype for Business (Lync), and Asterisk/Elastix- Class I lightning protection