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Grandstream GXW4248

The GXW4248 is a next generation high performance high-density analog VoIP gateway that is fully compliant with SIP standards and broadly interoperable with various VoIP systems, analog PBX's and IP phones.

This is a special order product and cannot be purchased online at this time. Please contact us for information on availability and pricing.

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Grandstream GXW4248 Core Features

  • 48x telephone FXS ports with both RJ11 and 2x 50-pin Telco connectors, as well as per port LED
  • Gigabit Ethernet and a backlit 128x32 graphic LCD display with support for multiple languages
  • 4 SIP server profiles per system and independent SIP account per port
  • Supported voice/Fax codecs include G.711, G.723.1, G.726, G.729A/B, iLBC, T.38 Fax
  • Advanced carrier grade 128ms-tail-length line echo cancellation
  • Over-voltage and over-current protection (ITU-T K.21 Basic Test Level)
  • Support VMWI, NEON LED and stutter tone for message waiting indication
  • Automated provisioning using TR-069 or AES encrypted XML configuration file; TLS/SRTP/HTTPS for advanced security and privacy protection


Grandstream GXW4248 Technical Specifications

  • Telephone Interfaces: 48x RJ11 FXS ports plus 2x 50-pin Telco connector
  • Network Interfaces: 1x 10M/100M/10000Mbps 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: Carrier grade 128-ms-tail-length line echo cancellation, dynamic jutter buffer, modem detection & auto-switch to G.711
  • Voice Compression: G.711, G.723.1, G.726, G.729 A/B, iLBC
  • Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through, Fax Datapump V.17, V.21, V.27ter, V.29 for T.38 fax relay
  • Telephony 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, flexible dial plan.
  • QoS: DiffServ, TOS, 802.1P/Q VLAN tagging
  • Network Protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, PPPoE, STUN, LLDP (pending)
  • DTMF Method: Flexible DTMF transmission methods including ln-audio, RFC2833, and/or SIP INFO
  • Signaling: SIP (RFC 3261) over UDP/TCP/TLS
  • SIP Server Profiles & Accounts Per System: 2 distinct SIP server profiles per system and an independent SIP account per telephone port
  • Provisioning: TFTP, HTTP, HTTPS, TR069
  • Security: SRTP, TLS/SIPS, HTTPS, 802.1x
  • Management: Syslog, HTTPS, Web browser, voice prompt, TR-069
  • Universal Power Supply: Output - 12VDC, 5A; Input - 100 ~ 240VAC, 50 ~ 60Hz
  • Environmental: Operating: 0° ~ 40°C; Storage: -20°C ~ 60°C; Humidity: 10% ~ 90% (non-condensing)
  • Electrical Protection: Over-voltage and over-protection (ITU-T Recommendation K.21, Basic Test Level)
  • Dimensions: 440mm (L) x 185mm (W) x 44mm (H)
  • Unit Weight: 2.64KG
  • Package Weight: 3.68KG
  • Mounting: Desktop and rack mount with front brackets
  • Short & Long Haul: 2 REN, up to 1500ft on 24 AWG wire
  • Caller ID: Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
  • Disconnect Methods: Busy Tone, Polarity Reversal/Wink, Loop Current
  • Compliance: FCC: Part 15 (CFR 47) Class B; CE: EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, RoHS C-TICK: AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AS/NZS 60950 ITU-T K.21 (Basic Test Level); UL 60950 (power adapter)

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Grandstream GXW4248

Grandstream GXW4248

The GXW4248 is a next generation high performance high-density analog VoIP gateway that is fully compliant with SIP standards and broadly interoperable with various VoIP systems, analog PBX's and IP phones.

This is a special order product and cannot be purchased online at this time. Please contact us for information on availability and pricing.

Write your review