Description
The Dinstar FXS Gateways DAG2000 is a 24-port FXS analog VoIP gateway engineered to bridge legacy analog telephones, fax machines, and PBX systems with modern IP-based communication networks using the SIP protocol. It’s widely used in business telephony, call centers, and multi-site operations that want to preserve existing analog investments while adopting VoIP.
Hardware & Physical Interfaces
Ports & Connectors
- 24 FXS Ports for Analog Devices
- Supports up to 24 FXS ports using RJ11 and RJ21 connectors.
This means 24 analog handsets or fax machines can connect simultaneously.
LED Indicators often show status for power, network activity, and line usage.
Compact Design — typically small and easy to deploy in office comm closets or behind PBXs.
Core Telephony & VoIP Features
Voice & SIP Support
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Supports SIP v2.0 (RFC 3261) over UDP/TCP/TLS for secure VoIP calls.
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Works with popular IP PBXs, softswitches, or hosted VoIP providers.
Multi‑party Calling
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3‑way conference calls directly through the gateway.
Fax Support
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T.38 fax over IP and pass‑through fax modes to support analog fax machines.
Voice Quality & Codecs
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Often supports common codecs such as G.711 A/U, G.723.1, G.729 A/B, and optionally iLBC/Opus — though actual codec support can vary by region or firmware.
Caller ID & Dial Modes
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Caller ID support in DTMF/FSK formats and both pulse & tone dialing.
Call Handling & User Features
These gateways include practical telephony functions that enhance usability:
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Call waiting — notify of incoming calls during another call.
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Call transfer (blind and attended).
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Call forwarding — unconditional and no‑reply options.
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Do Not Disturb (DND) — silence incoming calls.
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Speed dial & hotline — quick numbers or instant connect.
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Voice mail support.
Reliability & Stability of Dinstar FXS Gateways DAG2000
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Embedded, stable OS designed for 24/7 uptime.
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Carrier‑grade hardware layout with tested reliability.
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Failover support — keeps voice traffic connected even if SIP server fails.
Typical Use Cases
ost‑effective integration of analog devices with modern communications.
Fax & Legacy Equipment Support
Uses fax over IP or pass‑through for existing fax machines.
Small & Medium Businesses
Connect legacy analog office phones into a VoIP system without buying new IP phones.
Call Centers / Remote Offices
Reuse existing handsets while routing calls over internet VoIP platforms.
Frequently Asked Questions
1. What is the Dinstar FXS Gateways DAG2000 Gateway?
It is a 24-port FXS analog VoIP gateway engineered to bridge legacy analog telephones.
You can connect up to 24 analog phones or fax machines to the Dinstar DAG2000-24S.
You can connect up to 4 analog phones or fax devices using its FXS ports..
3. Can I use it with any VoIP system?
It works with most SIP‑based PBXs and hosted VoIP platforms, including Yeastar, Grandstream and IP-PBX systems.
4. Does it support security protocols?
Yes, it supports TLS for signaling and SRTP for encrypted voice traffic, keeping calls secure.
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