Physical Interfaces
•ISDNInterface 1/2/4*E1/T1, G.703, 120ΩRJ-48c
•Network InterfaceWAN and LAN, 2 * 10/100M Base-TX, RJ-45
•RS232 ConsoleRJ-45, 115200bps

Voice & 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

Protocols

•SIP-RFC3261,3262,3263,3264,

3265，3515,2976,3311

•SDP-RFC 2327

•RTP/RTCP-RFC2198,1889

•Network Protocol

IP,TCP, UDP,TFTP, FTP, RTP, RTCP,

ARP/RARP,ICMP Ping, NTP, SNTP,

Http, DNS

Signaling

•PRI/PRA ISDN E1/T1,JapanT1.ITU-T I.431, Q.921, Q.931, ETSIQ.sig

•R2China and other 22 variants

******Contact us For SS7 signaling capability*******************

Maintainance & Upgrades

•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 newsby syslog

•Call status information statistics

Certifications

• CE,FCC

Physical Features

•Power: input:100-240V,50-60Hz output:12VDC,1.0A

•Temperature(operation): 0 ℃~ 45 ℃

•(storage): -20 ℃~80 ℃

•Operation Humidity: 10%-90% no condensation