FXS VoIP Gateway (ATA Gateway) | Fanvil Hong Kong — GA100 Series & GA10

Fanvil FXS VoIP Gateway — Analog-to-IP Migration for Hong Kong

Bridge your legacy analog phones, fax machines, POS terminals, and elevator lines to modern SIP-based IP networks. From the compact 1-port GA10 to the 144-port rack-mount GA100 series, Fanvil delivers the most comprehensive FXS gateway portfolio in Hong Kong.

Get a Quote

Compare Models

What Is an FXS VoIP Gateway?

• An FXS (Foreign Exchange Station) VoIP gateway is a network device that connects traditional analog endpoints — telephones, fax machines, POS terminals, elevator emergency phones, fire alarm panels, and DECT base stations — to a modern IP-based voice infrastructure.
• The FXS port on the gateway provides the dial tone, DC battery power, and ringing voltage that analog devices require to operate.
• On the network side, the gateway converts the analog voice signal into digital voice packets using the SIP (Session Initiation Protocol) standard, allowing these legacy devices to register to an IP PBX, cloud telephony platform, or ITSP (Internet Telephony Service Provider).

For Hong Kong businesses, this matters enormously. Tens of thousands of SMEs across Mong Kok, Kwun Tong, San Po Kong, Kwai Chung, and Chai Wan still operate analogue telephone systems — sometimes connected to ageing NEC, Panasonic, or Samsung PBXs that are no longer supported. Rather than throwing away every analog desk phone, fax machine, and postage meter when migrating to a new VoIP platform, an FXS gateway lets you preserve your existing equipment investment while gaining the benefits of IP telephony: lower call costs, centralised management, unified communications, and seamless multi-site connectivity.

The Fanvil FXS gateway family spans ten models — from the palm-sized GA10 (a single-port ATA for one device) through the GA100 series (4, 8, 16, 24, 32, 48, 72, 96, and 144 ports). This is the broadest FXS gateway range available from any single manufacturer in the market today, ensuring that whether you are connecting a single fax machine in a Sheung Wan startup or wiring 144 analog extensions across a 20-storey industrial building in Kwai Fong, there is a Fanvil gateway purpose-built for the job.

Why Hong Kong Businesses Need FXS Gateways

• Hong Kong’s telecommunications landscape is in the middle of a generational shift.
• The city’s major carriers — PCCW-HKT, HKBN, SmarTone, and 3HK — have been actively migrating enterprise customers from legacy circuit-switched (TDM) and ISDN lines to all-IP fibre and SIP trunking.
• At the same time, OFCA’s ongoing spectrum and infrastructure policies are pushing the territory toward full IP-based communications.
• For many organisations, this means the PSTN and ISDN lines their phone systems were built around are being sunset.

But the devices at the end of those lines — the fax machine in the accounting department, the elevator emergency phone in a Tsim Sha Tsui office tower, the POS terminal at a Causeway Bay retailer, the cordless phone base station in a Sai Kung clinic — are perfectly functional and often expensive to replace. An FXS gateway sits neatly between the old and the new, translating SIP from the IP network into the analog signalling these devices understand.

Key drivers for FXS gateway adoption in Hong Kong:

🏢 Legacy PBX Replacement

• When your old NEC, Panasonic, or Samsung PBX finally fails, replacing it with a modern IP PBX doesn’t mean replacing every phone.
• FXS gateways keep analog extensions alive during and after migration.

📠 Fax Machine Continuity

• Many Hong Kong businesses — especially in finance, legal, and logistics — still rely on fax for contracts, purchase orders, and customs documents.
• T.38 fax relay ensures reliable fax over IP.

🏬 Elevator & Emergency Phones

• Building code requirements in Hong Kong mandate functional emergency phones in lifts and fire command centres.
• FXS gateways connect these life-safety devices to IP-based building communication systems.

🏪 Retail & F&B POS Lines

• Many POS terminals and EFTPOS card payment diallers still use analog phone lines.
• FXS gateways provide a cost-effective bridge to IP-based payment networks without replacing terminal hardware.

🏨 Hospitality & Serviced Apartments

• Hotels and serviced apartment operators can migrate their back-end phone system to IP while keeping analog handsets in guest rooms
• dramatically reducing per-room renovation costs.

📡 Multi-Site Branch Networking

• With built-in VPN client support, FXS gateways at remote branches securely register back to a centralised IP PBX over the public internet
• no expensive MPLS circuits required.

The Fanvil FXS Gateway Family

Fanvil offers two distinct FXS gateway product lines, each designed for different deployment scales. Below is a full overview of every model available in Hong Kong.

GA10 — Compact 1-Port SIP ATA Gateway

• The Fanvil GA10 is a compact, affordable SIP ATA (Analog Telephone Adapter) designed for individual users or single-device connectivity.
• Measuring just 90 × 80 × 25mm — smaller than a smartphone — it provides one FXS port (RJ11) for connecting a single analog phone, fax machine, or other analog endpoint to a VoIP service.
• Despite its small size, the GA10 supports premium codecs including G.722 wideband and Opus, delivering HD voice quality that rivals native IP phones.
• It handles 2 SIP lines and supports 3-way conferencing, making it a surprisingly capable little device.

Desktop or wall-mountable, the GA10 can be powered via USB or a standard 5V adaptor, giving you flexibility in where you place it. It is the ideal choice for a home office in Tai Wai, a single fax machine in a Central office, or a remote worker who needs to keep their existing analog desk phone.

Fanvil GA10

1-port FXS SIP ATA gateway with G.722/Opus HD voice, 2 SIP lines, 3-way conferencing. USB or adaptor powered. Desktop/wall-mount.

1 FXS Port

GA100 Series — Multi-Port FXS VoIP Gateway (4–144 Ports)

• The GA100 Series is Fanvil’s enterprise-grade FXS gateway platform, scaling from 4 ports all the way up to a remarkable 144 ports in a single 1.5U chassis.
• Designed for density, reliability, and carrier-grade management, the GA100 series is the go-to choice for Hong Kong system integrators, managed service providers, and enterprises undertaking large-scale analog-to-IP migrations.

All GA100 series gateways are SIP-compliant (RFC 3261), support SRTP encryption, IPv6, and TR-069 remote management. The higher-port models (48R and above) include SFP fibre uplink ports and dual Gigabit Ethernet ports, making them suitable for direct integration into core building network infrastructure without requiring separate media converters.

The rack-mountable models (24R and above) ship with standard 19-inch rack ears, letting you populate a communications rack in a Central Grade-A office, an industrial building in Kwai Chung, or a hotel back-of-house equipment room with clean, professional density.

GA100-4

• 4-port FXS gateway, RJ11, desktop.
• Level 4 lightning protection. 2× 10/100Mbps. 12V 1.5A power.

4 FXS

GA100-8

8-port FXS gateway, RJ11, desktop. 2× 10/100Mbps. 12V 1.5A power.

• 📄 GA100 Series FXS VoIP Gateway — Datasheet (PDF)
• 📄 Fanvil GA10 SIP ATA Gateway — Datasheet (PDF)
• 🔗 GA10 Product Page (fanvil.com.hk)
• 🔗 All FXS Gateway Products (fanvil.com.hk)

Get Your FXS VoIP Gateway Quote Today

Whether you are migrating a single fax machine or 144 analog extensions, Fanvil Hong Kong has the right FXS gateway for your project. Contact us for pricing, site surveys, and deployment consultation.

📧 Email: info@fanvil.com.hk  |  Serving Hong Kong, Kowloon & New Territories