48/64/72 FXS Analog VoIP Gateway

DAG2500 is a functional analog VoIP gateway offering seamless connectivity between VoIP and traditional phone system. It's a highly-integrated gateway which provides up to 72 FXS ports with standard RJ21 interface in 1U size. Users can easily connect their analog phones, fax machines and PBX systems via standard voice interface. DAG2500 supports the standard SIP protocol and it's compatible with leading IMS/NGN platform and SIP-based IP Phone system. It is ideally suited for small and medium businesses, call centers and multi-location environments that need VoIP services.

  • 3-Way Conference

  • T.38/T.30

  • 48/64/72 FXS



  • 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

    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
    5 km long haul
    Music on hold
  • DAG2500 Analog VoIP Gateway Datasheet
    DAG2500-48/64/72S Analog VoIP Gateway Manual