4E1/T1 VoIP Trunk Gateway, SIP, H.323

Key Benefits
◇ Cost-effective VoIP Trunk Gateway
◇ Support echo cancellation, DJB, VNG, VAD and Qos
◇ Voice codec option: G.711A/U, G.723.1(Option), G.729A/B(Option), iLBC(Option)
◇ Simple Configuration, friendly GUI, strong handling capacity, stability system
◇ Good compatibility, support Asterisk, Elastix, Freeswitch and Small and mdeium IPPBX Platform
Physical Interface
◇ ISDN Interface: 1/2*E1/T1, G.703, 120Ω RJ-48C
◇ Network Interface: WAN and LAN, 2*10/100M Base-TX, RJ-45
◇ RS232 Console RJ-45, 115200bps
Voice and Fax
◇ G.711A/U law (G.723.1, G.729A/B, iLBC-optional)
◇ Silence Suppression & Detection
◇ Comfort Noise Generation (CNG)
◇ Voice Activity Detection (VAD)
◇ Echo Cancellation (G.168)
◇ Adaptive (Dynamic) Jitter Buffer
◇ Call Progress Tone Generation
◇ Programmable Gain Control
◇ T.38/Pass-through
◇ DTMF Mode: Signal/RFC2833/Inband
Signal
◇ PRI/PRA ISDN E1/T1, Japan T1, ITU-T l.431, Q.921, Q,931, ETSIQ.sig
◇ R2 China and other 22 variants
Protocol
◇ SIP-RFC3261, 3262, 3263, 3264, 3265, 3515, 2976, 3311
◇ SDP –RFC 2327
◇ RTP/RTCP-RF2198, 1889
◇ Network Protocol: IP, TCP, UDP, TFTP, FTP, RTP, RTCP, ARP/PARP,
ICMP Ping, NTP, SNTP, Http, DNS
Physical Feature
◇ Power: Input: 100-240V, 50-60Hz
Output: 12VDC, 1.0A
◇ Temperature(operation): 0℃～45℃
(storage): -20℃～80℃
◇ Operation Humidity: 10%-90% no condensation
◇ Dimension (W/D/H): 225*150*38mm
◇ Weight: 0.75Kg
Maintain & Upgrade
◇ Web based configuration
◇ Data backup/restore
◇ Support English and Chinese
◇ Firmware upgrade by TFTP/Web
◇ Web & Telnet login password modify
◇ Factory reset
◇ Output CDR/Tracking news by syslog
◇ Call status information statistics