Grandstream GXW4248 48-Port FXS Gateway Gigabit Fax-over-IP TLS SRTP

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𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐓𝐈𝐓𝐋𝐄
Grandstream GXW4248 48-Port FXS Gateway Gigabit Fax-over-IP TLS SRTP

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𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐎𝐕𝐄𝐑𝐕𝐈𝐄𝐖
The GXW4248 high-density FXS gateway series enables businesses of all sizes to create a cost-effective hybrid IP and analog telephone system that offers the benefits of VoIP communications and takes advantage of Gigabit speeds while preserving investment on existing analog phones, fax machines and legacy PBX systems. The GXW4200 series includes 16/24/32/48 FXS ports, a Gigabit network port and features broad interoperability with most service providers, soft-switches and SIP-based environments.

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𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐓𝐘𝐏𝐄 / 𝐂𝐀𝐓𝐄𝐆𝐎𝐑𝐘
Networking
IP Phones

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𝐊𝐄𝐘 𝐅𝐄𝐀𝐓𝐔𝐑𝐄𝐒
• 10/100/1000Mbps auto-sensing RJ45 port
• TLS and SRTP security encryption technology to protect calls and accounts
• Automated provisioning options include TR069 and XML config files
• Supports 3-way voice conferencing
• Failover SIP server feature automatically switches to secondary server if main server loses connection
• Supports T.38 Fax for creating Faxover-IP
• Supports a wide range of caller ID formats
• Use with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning
• Supports advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multilanguage promtps, flexible dial plan and more
• Telephone Interfaces: 2 50-pin Telco connectors
• Network Interfaces: 1 x 10M/100M/1000Mbps auto-sensing RJ45 port
• LED indicators: LAN Link, LAN Activity, Connection Per Telephone Port
• LCD display: Backlit 128x32 graphic LCD display with support for multiple languages
• Voice-over-Packet Capabilities: Window based carrier grade line echo cancellation, dynamic jitter buffer, modern detection & auto-switch to G.711
• Voice Compression: G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC
• Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through, Fax data pump V.17, V.21, V.27ter, V.29 for T.38 fax relay
• Telephone Features: Caller ID display or block, call waiting, blind or attended call transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED (NEON LED) support and stutter tone, auto dial
• QoS: DiffServ, TOS, 802.1P/Q VLAN tagging

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𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐒𝐏𝐄𝐂𝐈𝐅𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒
• Brand: Grandstream
• Model: GXW4248
• Product Type: IP Phones
• 10/100/1000Mbps auto-sensing RJ45 port
• TLS and SRTP security encryption technology to protect calls and accounts
• Automated provisioning options include TR069 and XML config files
• Supports 3-way voice conferencing
• Failover SIP server feature automatically switches to secondary server if main server loses connection
• Supports T.38 Fax for creating Faxover-IP
• Supports a wide range of caller ID formats
• Use with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning
• Supports advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multilanguage promtps, flexible dial plan and more
• Telephone Interfaces: 2 50-pin Telco connectors
• Network Interfaces: 1 x 10M/100M/1000Mbps auto-sensing RJ45 port
• LED indicators: LAN Link, LAN Activity, Connection Per Telephone Port
• LCD display: Backlit 128x32 graphic LCD display with support for multiple languages
• Voice-over-Packet Capabilities: Window based carrier grade line echo cancellation, dynamic jitter buffer, modern detection & auto-switch to G.711
• Voice Compression: G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC
• Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through, Fax data pump V.17, V.21, V.27ter, V.29 for T.38 fax relay
• Telephone Features: Caller ID display or block, call waiting, blind or attended call transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED (NEON LED) support and stutter tone, auto dial
• QoS: DiffServ, TOS, 802.1P/Q VLAN tagging
• Network Protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP
• DTMF Method: Flexible DTMF transmission methods including in-audio, RFC2833, and/or SIP INFO
• Signaling: SIP (RFC 3261) over UDP/TCP/TLS
• SIP Server Profiles & Accounts Per System: 4 distinct SIP server profiles per system and independent SIP account per telephone port
• Provisioning: TFTP, HTTP, HTTTPS, TR069
• Security: SRTP, TLS/SIPS, HTTPS, 802.1x
• Management: Syslog, HTTPS, Web browser, voice prompt, TR-069
• Physical: Unit dimension: 440mm (L) x 255mm (W) x 44mm (H) (1U)
• Unit Weight: 3.21KG
• Package weight: 4.31KG
• Universal Power Supply: Output: 24VDC, 6.25A;

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𝐈𝐍𝐓𝐄𝐍𝐃𝐄𝐃 𝐔𝐒𝐄 / 𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒
• Business voice communications
• Office, reception, and institutional environments
• Integration with compatible SIP/VoIP systems

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𝐒𝐇𝐈𝐏𝐏𝐈𝐍𝐆
• Handling time: up to 2 business days
• Orders often ship the same business day
• Orders are not shipped on weekends or holidays
• Carrier is seller-selected (UPS, USPS, FedEx, or equivalent)
• Shipping delays may occur during high-volume periods or carrier-related issues
• Shipments to Alaska, Hawaii, Puerto Rico, or Guam may be cancelled due to cost
• Orders over $100 require a valid postal address
• Orders over $250 require insurance and signature confirmation
• International buyers are responsible for customs duties and import taxes
• Restricted destinations: Cuba, Iran, North Korea, Sudan, Syria, Russia

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𝐑𝐄𝐓𝐔𝐑𝐍𝐒
• Returns accepted within 30 days
• Item must be returned in the same condition as received
• Seller pays return shipping

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𝐃𝐀𝐓𝐀 𝐀𝐂𝐂𝐔𝐑𝐀𝐂𝐘 𝐃𝐈𝐒𝐂𝐋𝐀𝐈𝐌𝐄𝐑
Product details are based on available manufacturer information and may be subject to change without notice.

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𝐁𝐔𝐋𝐊 / 𝐕𝐎𝐋𝐔𝐌𝐄 𝐁𝐔𝐘𝐄𝐑𝐒
For bulk orders or volume inquiries, please contact us to confirm availability and pricing.

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𝐀𝐁𝐎𝐔𝐓 𝐄𝐇𝐔𝐁 𝐀𝐌𝐄𝐑𝐈𝐂𝐀
eHub America is a U.S.-based technology distributor specializing in two-way communications, networking, and security solutions. We operate with strict catalog standards, manufacturer-verified product data, and dependable order fulfillment. Our focus is serving professional, commercial, and institutional customers with consistency, accuracy, and operational reliability.