• 3-Way Conference

  • T.38/T.30

  • 48/64/72 FXS

  • TLS/SRTP

  • NGN/IMS

  • VLAN

Cost-Effective VoIP Gateway

48/64/72 FXS ports, 2 LAN

Support SIP, IMS 

T.38 Fax 

Flexible routing & Dial plan

Interoperable with leading softswitches, IP PBXs and SIP servers

High Stability and Reliability

Embedded Operation System

Market-proven hardware design

Carrier-grade reliability

Main/Secondary SIP server failover

TLS/SRTP Security

Easy Management 

  • Intuitive Web interface including Quick installation guide

    Support SNMP &TR-069

    Automated provisioning

  • Dinstar Cloud Management System

    Configuration Backup and Restore

    Debug tools in web interface

  • Features
  • Download
  • IPv6, IPv4

    Call waiting

    SIP/IMS
    Call Transfer (Blind transfer, Attend transfer)
    SIP v2.0 (RFC3261) based on UDP/TCP/TLS
    Call Forwarding (Unconditional, No reply)
    Fax over T.38 and Pass-through
    Speed Dial
    QoS:L3 DIFFServ, 802, 1P/Q VLAN Tagging
    Do Not Disturb(DND)
    3-way conference
    Automatic firmware upgrade and configuration via HTTP/HTTPS
    Hunting group
    System logs & CDR
    Voice Mail
    Flexible routing & dial plan
    Pluse Dialing
    Backup and restore
    MWI
    SNMP/TR-069
    5 km long haul
    TLS/SRTP
    Music on hold
  • DAG2500 Analog VoIP Gateway Datasheet
    DAG2500-48/64/72S Analog VoIP Gateway Manual