With up to 4 E1/T1 digital trunks, MX100G series Digital Media Gateway supports varieties of protocols and codecs, including SIP, ISDN PRI, G.711, G.729A, G.723, iLBC, GSM, and G.168, T.30, and T.38. It connects E1/T1-based PBX and PSTN to IP telephony networks. It is packaged in a 1U chassis.
 
Applications

• PSTN-SIP digital trunking gateway
• Interconnecting legacy PBX to IP-based voice network

Features:

• Flexible configuration up to 4 T1/E1 
• High performance with 6000 MIPS processing power 
• G.711, G.723.1, G.729A, iLBC, GSM codec 
• G.168 echo cancellation 
• DTMF relay and fax relay 
• Redundant power modules 
• Hot swappable modules 
• Session Initiated Protocol (SIP) 
• ISDN PRI (USA, ITU, and China) 
• RTP/RTCPTFTP for remote software upgrade 
• HTTP/HTTPS for system and interface configuration and monitoring 
• Telnet/SSH for remote support 
• DTMF Relay (RFC2833) 
• STUN Client for NAT/firewall traverse 
• CDR/Radius 
• T.38 Fax Relay