- SIP/MGCP protocols<br/>- 500 routing and number manipulation rules<br/>- Fax over IP using T.38 & G.711 pass-through<br/>- Dual redundant Ethernet ports<br/>- Dual DC/AC power supplies available<br/>- PSTN failover<br/>- TLS/SRTP<br/>- Auto provisioning<br/>- Remote access via the Redstone Cloud*<br/>- Management with the Redstone or third-party Remote Device Management Systems (TR-069 SNMP)<br/>- Interoperability with popular SIP servers such as Cisco CallManager/CUCM Broadsoft Microsoft Skype for Business (Lync) and Asterisk/Elastix<br/>- Class I lightning protection
