It solves a big problem: Traditional PSTN lines are disappearing in developed countries and not widely built in underdeveloped ones. Meanwhile, GSM phones are popular worldwide with low service fees. YX DBL GOIP fills the gap between old telephone networks and modern VoIP systems—making local and global calls cheaper, easier, and more far-reaching.

2. Key Advantages

YX DBL GOIP Gateway is a top choice for system integrators, traffic businesses, and softswitch manufacturers. Here’s why:

Low Cost: No initial installation or reallocation fees. Replace expensive PSTN/T1/E1 lines without extra charges.
Great Sound Quality: Uses professional codecs (like G.711, G.729A) to ensure clear voice calls.
Easy to Scale: Combine multiple gateways into a large group with any number of channels. Add or remove lines based on your needs.
Broad Coverage: Connect VoIP networks to local GSM/PSTN lines globally. Make/receive calls from anywhere with lower roaming or long-distance fees.
No License Limits (Trunk Mode): Use SIP Trunk Gateway Mode to avoid per-registration licenses (saves money for SIP systems).

3. Core Features

YX DBL GOIP Gateway has powerful hardware, software, and protocol support to work reliably.

(1) Hardware Features

Fast Processing: Equipped with an ARM processor and DSP for smooth voice signal handling.
Dual Ethernet Ports: Two 10/100MB ports (IEEE 802.3) with status LEDs for stable network connection.
Global GSM Support: Quadband GSM module (850M, 900M, 1800M, 1900M) works in most countries.
Flexible Antennas: External antenna included; internal antenna optional for selected models.

(2) Software Features

Stable OS: Runs on LINUX for long-term reliability.
Easy Configuration: Built-in Web Server and simplified SIP Proxy.
Useful Tools: Supports PPPoE dial-up, DHCP (client & server), VPN (PPTP), and QoS (VLAN) for network optimization.
Remote Management: Online firmware upgrades, remote control for technical support, and remote SIM function.
SMS Support: Send/receive short messages (standalone or server-based).

(3) Protocol Support

Works with common and advanced protocols to connect seamlessly:

TCP/IP V4 (auto-adapts to IP V6)
Dual VoIP protocols: ITU-T H.323 V4, IETF SIP V2.0
Multiple codecs: G.711, G.729A, G.729AB, G.723.1, GSM
NAT, STUN, DHCP, DNS, HTTP, and proprietary relay protocol (avoids VoIP blockings)

4. How to Set Up & Use YX DBL GOIP Gateway

Setting up the gateway is simple—no technical expertise required. The main method is via its built-in HTTP Web Server:

Prepare Your Device: Connect the YX DBL Gateway to your network using the Ethernet port. Insert a GSM SIM card into the device.
Open a Supported Browser: Use Windows-based browsers like Internet Explorer (IE) or Chrome. Firefox and Mozilla may not work properly with some versions.
Access the Web Interface: Enter the gateway’s IP address in your browser’s address bar. Log in with your account (uses MD5 authentication for security).
Configure Basic Settings: Set up GSM registration, VoIP softswitch connection, and call forward rules (see “Configuration” section below).
Start Making Calls: Once configured, you can make calls from VoIP to GSM/PSTN, or from GSM/PSTN to VoIP.

5. Top Use Cases for Your Business

YX DBL GOIP Gateway fits multiple business needs—here are the most popular ones:

(1) Replace Traditional PSTN Lines for Offices

Swap old PSTN/T1/E1 lines with the gateway to connect to your IP PBX. Everyone in the office can use the same phone number, even if you add/remove lines. No waiting for installation—start using it right away.

(2) Low-Cost International Calls

Call from anywhere via VoIP, then terminate the call to a local GSM/PSTN line using YX DBL Gateway (cuts long-distance fees).
Receive local calls (to your GSM number) and forward them to any number worldwide via VoIP.

(3) Cheaper GSM Roaming

Avoid high roaming charges: Route incoming GSM calls to the gateway (via call forward or inserting your SIM into the device). The gateway then forwards calls to another GSM number globally via a VoIP provider—costs far less than standard roaming.

(4) Direct Calls Between Two Fixed Locations

Set up YX DBL Gateways at two locations (e.g., headquarters and a branch). You can make direct calls between them without a VoIP service provider—saves monthly service fees.

6. Configuration Options (Web & Auto Provision)

You have two easy ways to configure the YX DBL Gateway:

(1) Built-in HTTP Web Server

This is the most common method (covered in the “How to Use” section). It lets you adjust settings like SIM call forward, SIP trunk, and network parameters directly in your browser.

SIM Call Forward Settings

You can control how calls are forwarded for each SIM channel:

ON: Enable call forward (sent to the GSM network on new registration).
OFF: Disable call forward (sent to the GSM network on new registration).
Not Set: Keep current call forward settings (no changes sent to the GSM network).

(2) Auto Provision Server

DBL Technology provides a free Auto Provision Server (works on Windows and Linux). It automates configuration for multiple gateways—perfect if you have a large setup. You can download it for free from our website.

7. Buy YX DBL GOIP Gateway Today

Ready to lower your voice communication costs, expand coverage, and simplify your phone system? The YX 32 port DBL GOIP Gateway is your reliable, cost-effective solution.

Click the “Buy Now” button below to choose your model. We offer fast global shipping and 24/7 technical support to help you get started.

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YX DBL GOIP Gateway: Bridge GSM & IP Networks for Low-Cost Voice Communication

Table of Contents

1. What Is YX DBL GOIP Gateway?

2. Key Advantages