--- product_id: 62003081 title: "Synway 4 Port Fxs" brand: "synway" price: "HK$95" currency: HKD in_stock: false url: https://www.desertcart.hk/products/62003081-synway-4-port-fxs store_origin: HK region: Hong Kong --- # 100Mbps Ethernet for fast, reliable LAN connection 4 FXS ports for seamless analog integration OpenVPN & VLAN support for secure network management Synway 4 Port Fxs **Brand:** synway **Price:** HK$95 **Availability:** ❌ Out of Stock ## Summary > 📡 Connect legacy with tomorrow’s VoIP—because your calls deserve the best! ## Quick Answers - **What is this?** Synway 4 Port Fxs by synway - **How much does it cost?** HK$95 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/62003081-synway-4-port-fxs) ## Best For - synway enthusiasts ## Why This Product - Trusted synway brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal Clear Calls:** Advanced DSP echo cancellation and multiple codec support ensure toll-quality voice clarity every time. - • **Legacy Meets Future:** Effortlessly bridge your analog PBX and fax machines to modern IP networks without a hitch. - • **Secure & Flexible Networking:** Supports DHCP, DDNS, PPPoE, OpenVPN, and VLAN for robust, customizable network setups. - • **Cost-Effective VoIP Migration:** Phased transition to IP telephony that saves budget while upgrading your communication infrastructure. - • **Enterprise-Grade Compatibility:** Works flawlessly with top PBX systems like 3CX, Asterisk, FreePBX, and more—future-proof your communications. ## Overview The Synway 4 Port FXS Gateway is a powerful analog-to-IP telephony bridge featuring 4 FXS ports, 100Mbps Ethernet, and broad compatibility with leading PBX systems. It supports SIP and MGCP protocols, advanced voice codecs, T.38 fax over IP, and secure networking options like OpenVPN and VLAN, enabling enterprises to seamlessly migrate legacy telephony infrastructure to modern VoIP environments with crystal-clear call quality and cost efficiency. ## Description With a simple and economical way to help legacy telephone, fax machine and PBXs interconnect with IP network, Synway SMG1004B analog gateway enables call center and multi-branch enterprises to process powerful, versatile and efficient VoIP solutions with unparalleled cost advantages. SMG1004B Analog Gateway allows for a well-planned, phased migration to an IP network, making the gateways an easy solution for enterprises looking to enhance their legacy PBX equipment with new VoIP access and applications. Connected between a PBX or a LAN, the SMG1004B Gateway converts analog PSTN messages into a format suitable for transmission over standard IP networks. Designed for voicemail and unified messaging applications, SMG 1004B has a 10/100 Base-T Ethernet connection for connecting legacy PBX to a LAN. The analog loop start functionality supports integration via in-band signaling (DTMF or FSK) or serial protocols. The SMG1004B Gateways provide a simple, cost-effective transition to voice and data convergence for enterprises with PBXs. Connected externally, they offer an IP solution that works with current legacy equipment. They support SIP-based applications as well as T.38 for fax transmissions over IP (FoIP). Signaling & Protocol SIP signaling Supported protocol: SIP V1.0/2.0, RFC3261 Audio Encoding & Decoding G.711A 64 kbps G.711U 64 kbps G.729A/B 8 kbps G723 5.3/6.3 kbps G722 64 kbps AMR 4.75 kbps iLBC 13.3/15.2 kbps Sampling Rate 8kHz Safety Lightning resistance Level 4 ## Features - FXS: 4x FXS Ports; FXO: 0x FXO Ports, Support SIP and MGCP Standard Control Protocols - LAN: 1x 100Mbps Port; Telephony Interface: RJ11 - Network: DHCP, DDNS, OpenVPN, PPPoE, Static Route, VLAN, Power Adapter: 100-240V - Compatibility: VOS, 3CX, Asterisk, Lync Server, FreePBX, Elastix, Broadsoft, Mitel and Other Leading PBX, IP-PBX, Softswitches - T.38 Fax Compliant, G.168 128ms Echo Cancellation, DSP-based Toll Quality Voice Compression:G.723/722/729/GSM ## Product Details - **Brand:** Synway - **Item dimensions L x W x H:** 22 x 4 x 14.8 centimetres - **Item weight:** 0.37 Kilograms - **Manufacturer:** Synway - **UPC:** 732840566803 ## Images ![Synway 4 Port Fxs - Image 1](https://m.media-amazon.com/images/I/41H96l8koRL.jpg) ![Synway 4 Port Fxs - Image 2](https://m.media-amazon.com/images/I/51wZDWTwB-L.jpg) ![Synway 4 Port Fxs - Image 3](https://m.media-amazon.com/images/I/41luyEuN-WL.jpg) ![Synway 4 Port Fxs - Image 4](https://m.media-amazon.com/images/I/413jyLSjY6L.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/62003081-synway-4-port-fxs](https://www.desertcart.hk/products/62003081-synway-4-port-fxs) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-18*