Grandstream GXW4248 High Density FXS VoIP Gateway
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Grandstream GXW4248 High Density FXS VoIP Gateway

Original price was: KSh92,000.00.Current price is: KSh81,500.00. ( Ex VAT )

-11%
Grandstream GXW4248 High Density FXS VoIP Gateway
Key Features

  • 48 high-density FXS ports support large-scale analog device integration

  • Gigabit Ethernet uplink ensures high-throughput VoIP transport without network bottlenecks

  • Front-panel LCD display allows local status monitoring and simplified configuration

  • Independent SIP per port for flexible call-routing and detailed provisioning

  • High-quality voice performance with wideband codecs (Opus, G.722) and robust echo/jitter cancellation

  • Reliable fax handling via T.38 relay and G.711 fallback modes

  • Secure provisioning and operation with TLS/SRTP, TR‑069, and secure boot with unique device certificate

  • Advanced telephony control including message waiting indication, conferencing, call transfer, and paging

  • Robust QoS and VLAN support to prioritize voice traffic on the network

  • PSTN lifeline passthrough to maintain analog telephone service if power or VoIP connectivity is lost

  • Built-in electrical protection adheres to ITU‑T K.21 standards for field reliability

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Grandstream GXW4248 High Density FXS VoIP Gateway
Grandstream GXW4248 High Density FXS VoIP Gateway
KSh92,000.00 Original price was: KSh92,000.00.KSh81,500.00Current price is: KSh81,500.00. ( Ex VAT )
Grandstream GXW4248 High Density FXS VoIP Gateway

The Grandstream GXW4248 is a high-performance 48-port FXS VoIP gateway designed to bridge analog telephony systems with modern IP-based networks. It features both RJ‑11 and 50‑pin Telco connectors, Gigabit Ethernet support, and a front-mounted LCD display. The GXW4248 supports dual SIP server profiles, per-port SIP account assignments, advanced telephony and security features, and built-in NAT routing. This gateway is ideal for migrating analog telephone systems to VoIP in SMBs, multitenant properties, or branch offices.

Grandstream GXW4248 High Density FXS VoIP Gateway Specifications

  • FXS Ports: 48 RJ‑11 analog ports with dual 50‑pin Telco support

  • Network Interface: 1 × auto-sensing Gigabit Ethernet RJ‑45 port

  • LCD Display: Backlit 128 × 32 graphic LCD, multi-language supporthttps://www.city.co.ke

  • SIP Profiles: Up to 4 SIP server profiles per unit, each port supports independent SIP account

  • Voice Codecs: G.711 μ/a-law, G.723.1, G.726 (40/32/24/16), G.729A/B, iLBC, Opus support

  • Fax Support: T.38 compliant up to 14.4 kbps with automatic G.711 fallback; V.17/V.21/V.27ter/V.29 T.38 modem pump

  • Echo & Jitter Control: Carrier-grade G.168 echo cancellation with 128 ms tail; dynamic jitter buffer with modem detection and auto-switch to G.711https://www.city.co.ke

  • Telephony Features: Caller ID support/block, call waiting, transfer, forward, DND, 3-way conferencing per port, last-call return, paging, message waiting indicator via LED or tone, flexible dial plan

  • QoS & VLAN: DiffServ, TOS, 802.1p/q tagging for traffic prioritization

  • Network Protocols: Supports TCP, UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, Telnet, PPPoE, STUN, and LLDP

  • DTMF Methods: In-audio, RFC 2833, SIP INFO options supported

  • Security & Provisioning: TLS/SIPS, SRTP, HTTPS for management; TR‑069, TFTP, HTTP, HTTPS, and encrypted XML provisioning; 802.1x support; secure boot with unique certificate

  • Power Supply: 24 V DC, 6.25 A universal input power (100–240 VAC)

  • Protection Standards: ITU‑T K.21 over-voltage and over-current protection

  • Environmental Range: Operating temperature 0 °C to 40 °C; storage −20 °C to 60 °C; 10% to 90% non-condensing humidity

  • Physical Specs: 1 U rack-mount (440 × 255 × 44 mm); approx. 3.21 kg net weight

  • Mounting Options: Rack or desktop mount with included brackets

  • Compliance & Warranty: FCC, CE, RCM, UL, RoHS certified; typically 1-year standard and up to 3-year regional warranty

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