Physical Interfaces |
E1/T1 Ports :4/8/12/16/20 E1/T1 |
DTU Module :4 E1/T1 |
Interface Type :RJ48(Impedance 120Ω) |
Ethernet Interface |
GE1: 10/100/1000 BaseT Adaptive Ethernet |
GE0: 10/100/1000 BaseT Adaptive Ethernet |
Serial Port :1* RS232, 115200bps |
Voice Capabilities |
•Codecs:G.711a/μ law,G.723.1, G.729A/B, iLBC, AMR |
•Silence Suppression |
•Comfort Noise |
•Voice Activity Detection |
•Echo Cancellation (G.168),with up to 128ms |
•Adaptive Dynamic Buffer |
•Voice ,Fax Gain Control |
• FAX:T.38 and Pass-through |
•Support Modem/POS |
•DTMF Mode: RFC2833/Signal/Inband |
•Clear Channel/Clear Mode |
PSTN |
•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 |
Protocol |
•ISDN PRI |
23B+D(T1),30B+D(E1),NT or TE |
ITU-T Q.921, ITU-T Q.931, Q.Sig |
•Signal 7/SS7 |
ITU-T, ANSI,ITU-CHINA |
MTP1/MTP2/MTP3, TUP/ISUP |
•E1 Frame Type : DF,CRC-4,CRC_ITU |
•T1 Frame Type :
4-Frame Multi-frame (F4,FT),2-Frame Multi-frame (F12, D3/4),Extended Super-frame (F24, ESF) ,Remote Switch Mode (F72, SLC96) |
•Line Codes: |
E1:NRZ,CMI,AMI,HDB3 |
T1:NRZ,CMI,AMI,B8ZS |
•Clock:Local/Remote Clock Source |
VoIP Protocol |
•SIP v2.0 (UDP/TCP),RFC3261 |
SDP,RTP(RFC2833), RFC3262, |
3263,3264,3265,3515,2976,3311 |
•RTP/RTCP, RFC2198, 1889 |
•SIP-T,RFC3372, RFC3204, RFC3398 |
•SIP Trunk Work Mode :Peer/Access |
•SIP/IMS Registration :with up to 256 SIP Accounts |
•NAT: Dynamic NAT, Rport |