High-density Analog VoIP Gateway

DAG3000-312S FXS analog gateway is a multi-functional voice gateway that provides seamless connectivity with analog phones, fax machine or analog PBXs to VoIP gateway. The overall frame of DAG3000-312S is compact and structured, supporting RJ21 interface standards and up to 312 FXS voice interfaces via user boards plugging at a size of 3U. In addition, DAG3000-312S provides high-performance hardware solution with good voice/fax processing capability. It is able to provide efficient and high-quality IP voice services for service providers, enterprises, community residents, and hospitalities.

  • 312 FXS


  • 3-Way Conference

  • T.38/T.30


  • VLAN

High-density FXS VoIP Gateway

Max 312 FXS Ports, RJ21(50-pin telco), 3U Chassis

312 concurrent calls for all voice codecs

Ideal for VoIP deployments with large install base of analog devices

High Reliability

Redundant power supplies

Dual bond GE: GE port failover & load balancing

Lightning protection up to 4KV

5KM long lines

Failover dial plan

High Security

Radius authentication

TACACS authentication



Access control list

Full VoIP Features & Broad Compatibility

SIP v2, compatible with mainstream IP PBXs, Softswitches and SIP servers

Voice, Fax (T.38 & T.30 bypass) and modem support


Flexible routing and dial plan

HD voice quality and various voice codecs

Easy Management

  • Web interface with quick configuration wizard, the setup is not complicated anymore

    Auto-provisioning for large-scale deployments

  • Support SNMP and TR069

    Dinstar Cloud NMS: Dinstar own mangement system enables you to manage, monitor and maintain devices in bulk

  • Features
  • Download
  • Digit Map
    Action URL
    Custom IVR
    Call Holding
    Call Waiting
    Blind Transfer
    Attend Transfer
    Call Forward on Busy
    Call Forward on No Reply
    Ringing Group, Hotline
    3-way Conference
    Early Media/Early Answer
    Abbreviated Dialing
    Access and Peer Mode
    SIP PnP Auto Provisioning
    Unconditional Call Forward
    SIP registration to different servers
    Flexible Call Routing Policy
    Caller/Called Number Manipulation
    Silence Suppression
    Bandwidth Optimization
    Comfort Noise Generation(CNG)
    Voice Activity Detection(VAD)
    Packet Loss Concealment
    Adaptive (Dynamic) Jitter Buffer
    Programmable Gain Control
    G.711A/U law, G.723.1, G.729A/B, G.726, iLBC, AMR, AMR-GSM
    DTMF mode: Signal/RFC2833/INBAND
    Echo Cancellation(G.168), with up to 128ms
  • DAG3000-312S Analog VoIP Gateway Datasheet
    DAG3000-312S Analog VoIP Gateway User Manual
    DAG3000 Analog VoIP Gateway Quick Installation Guide