

Dinstar VoIP Gateway DAG3000-312S
312 FXS Analog VoIP Gateway, Modular 3U Design, SIP, IPv6, T.38 Fax, RJ21, Dual PSU
Dinstar DAG3000-312S is a high-density FXS analog VoIP gateway designed for large-scale telephony environments. With a modular 3U chassis, it supports up to 312 FXS ports via 13 user boards and RJ21 interfaces. It enables seamless integration between legacy telephones, fax machines, PBX systems, and IP-based telephony networks. The gateway supports standard SIP and RTP protocols, compatible with platforms like Asterisk, FreeSWITCH, and BroadSoft. Featuring comprehensive voice and fax processing, SNMP/TR069 provisioning, and dual power supply, the DAG3000-312S ensures reliable, scalable, and efficient VoIP connectivity for service providers and enterprises.
Key Features:
- 312 FXS ports via 13 user boards
- Modular 3U design with RJ21 interfaces
- SIP, RTP, IPv4/IPv6 supported
- Compatible with BroadSoft, Asterisk, FreeSWITCH
- T.38 fax, echo cancellation, packet loss concealment
- Call forwarding, transfer, voicemail, IVR
- SNMP, TR069, cloud and local provisioning
- Dual 100–240VAC power supplies
- QoS, TLS/SRTP, secure remote management
- Dimensions 440×360×132 mm, 12 kg
Product Specifications:
- Manufacturer: Dinstar
- Model: DAG3000-312S
- Device Type: FXS Analog VoIP Gateway
- FXS Ports: 312 via 13 user boards
- Interface: RJ21 (24 FXS per board)
- Chassis: Modular 3U design
- SIP Protocol: SIP v2.0 (UDP/TCP), TLS
- Supported Codecs: G.711A/U, G.723.1, G.729A/B, G.726, iLBC, AMR, AMR-GSM
- Fax Support: T.38 and Pass-through
- Echo Cancellation: G.168, up to 128ms
- Voice Features: CNG, VAD, Jitter Buffer, Gain Control
- Call Features: Call forwarding, transfer, hold, conference, voicemail
- Security: TLS, SRTP, RADIUS, SSH/Web ACL, encryption
- Network: IPv4/IPv6, VLAN, NAT, PPPoE, DHCP
- Provisioning: SNMP, TR069, web, cloud, auto config
- Management: Web, Telnet, IVR, backup, firmware update
- Diagnostic Tools: Ping, Tracert, network capture, GR909
- Power Supply: Dual 100–240VAC, 50–60Hz
- Power Consumption: Idle 150W, Full Load 400W
- Max Line Length: 5 km
- Dimensions: 440 × 360 × 132 mm
- Weight: 12 kg
- Compliance: CE, FCC
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