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Dinstar VoIP Gateway DAG2500-72S
72 FXS VoIP Gateway, SIP Support, T.38 Fax, Dual Power, RJ45/RJ21, IPv6, SNMP, 1U Rackmount
Dinstar DAG2500-72S is a high-density analog VoIP gateway featuring 72 FXS ports within a compact 1U chassis. Equipped with RJ45 or RJ21 interfaces, the device enables seamless connectivity between analog phones, fax machines, and PBX systems and IP telephony infrastructure. It supports SIP protocol, dual-stack IPv4/IPv6, and a wide range of voice codecs including Opus. With dual power supply capability, advanced voice/fax processing, and cloud-based management via SNMP or TR069, the DAG2500-72S is ideal for service providers and large-scale enterprise telephony deployments.
Key Features:
- 72 FXS ports via RJ45 or RJ21 interface
- SIP support with TLS, NAT traversal, and IPv6
- T.38 fax and pass-through support
- Supports G.711, G.729, G.723.1, AMR, Opus codecs
- Echo cancellation G.168 up to 128ms
- 5 km maximum cable length
- Call waiting, IVR, voicemail, 3-way conferencing
- SNMP, TR069, Radius, and cloud provisioning
- Three LAN ports and RS232 console included
- Dual power supply support with 95W usage
- 1U rackmount, CE and FCC certified
Product Specifications:
- Manufacturer: Dinstar
- Model: DAG2500-72S
- Device Type: FXS Analog VoIP Gateway
- FXS Ports: 72 × RJ45 or RJ21 (50 PIN)
- SIP Protocol: SIP v2.0 (UDP/TCP)
- SIP Features: TLS, SRTP, STUN, NAT, SIP Trunk, early media
- Voice Codecs: G.711A/U, G.723.1, G.729A/B, G.726, AMR, AMR-GSM, iLBC, Opus (optional)
- Fax Support: T.38 and Pass-through
- DTMF Modes: Signal, RFC2833, Inband
- Echo Cancellation: G.168 up to 128ms
- Voice Features: VAD, CNG, jitter buffer, gain control, bandwidth optimization, packet loss concealment
- Caller ID: DTMF/FSK CLI Presentation
- Dial Modes: DTMF and Pulse
- Pulse Rate: 10 and 20 PPS
- Polarity Reversal: Supported
- Max Cable Length: 5 km
- Call Features: Call waiting, call hold, IVR, transfer, forward, hotline, voicemail, 3-way conference
- Network Protocols: IPv4, IPv6, TCP, UDP, FTP, TFTP, HTTP/HTTPS, SNTP, OpenVPN
- LAN Ports: 2 × 10/100/1000 Mbps + 1 × 10/100 Mbps
- Console Port: 1 × RS232 (115200 bps)
- Remote Management: SNMP, TR069, Radius, Cloud (NMS), Web, Telnet
- Provisioning: Auto provisioning, firmware upgrade, config backup/restore
- Security Features: TLS, SRTP, QoS, SSH/Web ACL, certificate management
- Power Supply: 100–240VAC, 50/60 Hz
- Power Consumption: 95W
- Power Options: Dual power supply supported
- Operating Temperature: 0°C to 45°C
- Storage Temperature: –20°C to 80°C
- Humidity: 10%–90% non-condensing
- Dimensions: 440 × 328 × 44 mm
- Weight: 4.25 kg
- Compliance: CE, FCC
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