Đặc tính kỹ thuật
Physical Interfaces
- E1/T1 Ports: 4/8/12/16/20
- DTU Module: 4 E1/T1
- Interface Type: RJ48 (Impedance 120Ω)
- GE1: 100/1000 Mbit BaseT Adaptive Ethernet
- GE0: 100/1000 Mbit BaseT Adaptive Ethernet
- Serial Port: 1* RS232, 115200bps
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
Call Features
- Flexible Route Methods PSTN-PSTN, PSTN-IP, IP-IP, IP-PSTN
- Intelligent Routing Rules
- Call Routing base on Time
- Call Routing base on Caller/Called Prefixes
- 256 Route Rules for each Direction
- Caller and Called Number Manipulation
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
Maintenance
- Radius
- Web GUI Configuration
- Data Backup/Restore
- PSTN Call Statistics
- SIP Trunk Call Statistics
- Firmware Upgrade via TFTP/FTP/Web
- Network Capture
- SNMP v2
- Syslog: Debug, Info, Error, Warning , Notice
- Call History Records via Syslog
- NTP Synchronization
- Centralized Management System
Software Features
- Local/Transparent Ring Back Tone
- Overlapping Dialing
- Dialing Rules, with up to 2000
- PSTN group by E1 port or E1 Timeslot
- IP Trunk Group Configuration
- Voice Codecs Group
- Caller and Called Number White Lists
- Caller and Called Number Black Lists
- Access Rule Lists
- IP Trunk Priority
- RTP and Signaling Encryption (VOS RC4)
- Bảo hành: 12 tháng.
