• One ITU-T G.703 standard E1 interface
• Hardware echo cancellation up to 128 ms
• R2 and ISDN signaling
• Approved by major carriers
• SIP PRACK Support
• Silence Suppression, Comfort Noise Generation (CNG)
• Voice Activity Detection (VAD)
• WEB or CLI configuration
• TFTP auto provisioning
• Codecs: G.729, G.723, G.726 and G.711
• Fax and Modem Support (T.38 and G.711)
• IP and VLAN Packet Tagging

Management, configuration and monitoring

• CPU and memory usage monitoring
• E1 channel and interface monitoring
• SNMPv2c monitoring
• SNMP Traps for E1 Interface Alarms
• Line Command Interface (CLI) via Remote SSHv2 Access
• HTTPS accessible graphical interface
• Remote Software Update
• Signaling Debugging Tool
• Port mirroring for easy SIP and RTP packet capture
• Static IP Address Configuration
• Dynamic IP Address Configuration via DHCP or PPPoE
• TFTP auto provisioning using DHCP server option 66
• NTP time clock support
• Remote logging through Syslog

E1 digital interface

• ITU-T G.703 120 Ohms Standard to RJ-45 Connector
• HDB3 line coding
• Frame structure according to ITU-T G.704
• Internal or External Clock Reference
• Jitter performance to ITU-T G.823 standard
• Hardware echo cancellation up to 128 ms (G.168-2002) on all channels
• ISDN Primary Access with signaling variants
  • Euro-ISDNISO
  • Q.SIG
  • National ISDN-1
  • National ISDN-2
• R2 signaling
  • R2-Digital
  • CAS R2-MFC

Interoperability and voice quality

• SIP over UDP
• Multiple SIP Accounts
• SIP PRACK Support
• Secure Network Identity Verification (p-asserted-identity)
• Adaptive Jitter Buffer
• Voice Activity Detection (VAD)
• Comfort Noise Generation (CNG)
• Silence suppression
• IP Precedence and TOS or DSCP and ECN packet marking
• Bandwidth Setting
• VLAN Tag Insertion and Removal
• Supports NAT

Call Control and Management

• Call Routing by Source Number
• Routing by Destination Number
• Handling source and destination numbers
• Incoming Call Blocking

Audio codecs

• G.711 law A @ 64 kbps
• G.711 law μ @ 64 kbps
• G.723.1 @ 6.3 kbps or @ 5.3 kbps
• G.726 @ 16, 24, 32, or 40 kbps
• G.729A, G729B, and G.729AB @ 8 kbps
• Fax and modem support
• T.38Fax and Pass-Through Modem (G.711)

DTMF Support

• Within the band using G.711
• Out of band following RFC 2833
• Using the SIP Info Method

Safety

• HTTPS and SSHv2
• Firewall

Hardware Specifications

• Adapter with 100-240 Vac full-range input and 12 Vdc @ 1A output

• <4 W

• 32x120x130

• 0 to 45

• Up to 95%, non-condensing

• About 600 g

• Ethernet: 2 x 10/100 Base-T
• E1: 1 x G.703 (120 Ohm) to RJ-45 connector

• User Manual - DOWNLOAD
• Datasheet - DOWNLOAD

• Contact
• Knowledge base
• Repair Shipment