Digital Gateway with 50 to 60Hz Frequency, 1E1/T1, 2E1/T1 and 4E1/T1 Interfaces, SIP Protocol
Memory:
Internal: 128MB
System flash: 8MB
Flexible configuration: up to 8 T1/E1, G.711, G.723.1, G.729A codec and G.168 echo cancellation
Input power: 100 to 240V AC
Frequency: 50 to 60Hz
Maximum current: 1A
Maximum power consumption: 70W
DTMF relay and fax relay, redundant power modules and hot-swappable modules
Session initiated protocols: (SIP), ISDN PRI (USA, ITU and China), RTP and FTP for remote software upgrade
HTTP for system, interface configuration and monitoring, telnet for remote
DHCP for dynamic IP address allocation, DTMF relay (RFC2833), STUN customer for NAT and firewall traverse
CDR and radius, T 38 fax relay Ethernet interface: RJ45
T1 interface: RJ45
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