The Grandstream GXW4248 V2 is a high-density analog VoIP gateway designed to seamlessly connect traditional analog phones and fax machines to modern IP-based phone systems. This 48-port FXS gateway delivers enterprise-grade voice connectivity with robust features and reliability for businesses of all sizes.
The GXW4248 V2 is an ideal solution for businesses migrating from traditional phone systems to VoIP infrastructure while preserving their investment in analog equipment. Whether you're running a call center, hotel, educational institution, or multi-location business, this gateway enables you to integrate existing analog phones, fax machines, and legacy PBX systems into a unified IP communications network. The high port density reduces equipment costs and rack space requirements, while the comprehensive codec support ensures compatibility with virtually any SIP-based IP-PBX or hosted VoIP service. With its robust security features and enterprise-grade reliability, the GXW4248 V2 protects your communications while delivering crystal-clear voice quality.
When you choose this Grandstream GXW4248 V2 gateway, you're backed by a trusted technology partner with over 30 years in business and a commitment to quality. Every unit has been fully reconditioned by A+ certified technicians who ensure reliable performance and functionality. We stand behind our products with comprehensive warranties and a no-hassle return policy, so you can purchase with confidence.
Upgrade your business communications infrastructure today with this high-capacity FXS gateway and enjoy the benefits of VoIP technology without abandoning your existing analog devices. Order now and take advantage of our fast fulfillment to get your gateway deployed quickly.

These products are brand new and have never been used. They arrive in the original manufacturer packaging in pristine, factory-fresh condition.
| Manufacturer | Grandstream |
|---|---|
| Model | GXW4248-V2 |
| Network Interface | 1x Gigabit Ethernet port |
| # of Telephone Interfaces | 2 50-pin Telco connectors (supports 48 ports) |
| LCD display | Backlit 128x32 graphic LCD display with multi-language support |
| LED indicators | Power, LAN Link, LAN Activity, Connection Per Telephone Port |
| Voice Compression | G.711, G.723, G.726-32, G.729, G.722 (wide band), iLBC, Opus (wide-band) |
| Fax over IP Support | T.38 compliant Group 3 Fax Relay (up to 14.4kbps); auto-switch to G.711 for Fax Pass-through |
| Telephony Features | Caller ID display/block, call waiting, transfer (blind/attended), forward, DND, 3-way conference, last call return, paging, MWI, auto dial |
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
| Provisioning | TFTP, HTTP, HTTPS, FTP, FTPS, TR-069, XML config files; Zero Config with Grandstream UCM |
| Security | SRTP, TLS/SIPS, HTTPS (AES-128), SecureBoot, random admin passwords, unique certificates, dual firmware images |
| Dimensions | 10.04" x 17.32" x 1.73" |
| Mounting | Desktop and rack mount with front brackets |
| Included | 1x GXW4248-V2 1x Universal Power Supply 1x front brackets |
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