GrandStream GS-GXW4248 48 Port FXS VoIP Gateway

The Grandstream GS-GXW4248 is a 48 FXS port VoIP gateway that can be used to connect analog devices such as phones and faxes to a VoIP network. Support for several voice/fax codes and a combination of 48 RJ11 FXS ports and a 50-pin Telco connector makes the GXW4248 versatile for a variety of uses.

It is a high-density VoIP gateway that is fully compliant with SIP standards and broadly interoperable with various VoIP systems, analog PBX and phones on the market. The GXW4248 features 48 FXS analog telephone ports, superb voice quality, rich telephony functionalities, easy provisioning, flexible dialing plans, advanced security protection, and excellent performance in handling high-volume voice calls.

This analog gateway offers small-to-medium businesses a cost-effective hybrid IP and analog telephone system that allows them to enjoy the benefits of VoIP communications while preserving investment on existing analog phones, fax machines, and legacy PBX systems.

Grandstream GXW4248 – Technical Specifications

Telephone Interfaces

• 16/24/32 x RJ11 & 1/1/2 50-pin Telco connectors
• GXW42482 50-pin Telco connector

Network Interfaces

• 1 x 10M/100M/1000Mbps auto-sensing RJ45 port

LED indicators

• ;LAN Link, LAN Activity, Connection Per Telephone Port

LCD display

• Backlit 128×32 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

Telephony Feature

• 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

• 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

Universal Power Supply

•  Output: 12VDC, 5A; Input: 100 ~ 240VAC, 50 ~ 60Hz GXW4248: Output: 24VDC, 6.25A; Inpu: 100 ~ 240VAC, 50~ 60Hz

Environmental

• Operating: 0 °C ~ 40C; Storage: -20°C ~ 60°C; Humidity: 10% ~90% (non-condensing)

Electrical Protection

• Over-voltage and over-current protection (ITU-T Reccomendation K.21, Basic Test Level)

Physica

• Unit dimension: 440mm (L) x 255mm (W) x 44mm (H) (1U) (GXW4248)
• 440mm (L) x 185mm (W) x 44mm (H) (1U) (GXW4216/4224/4232)
• Unit Weight: 3.21KG; Package weight: 4.31KG (GXW4248)
• 2.63KG; 3.68KG (GXW4224)
• 2.57KG; 3.62KG (GXW4224)
• 2.39KG; 3.48KG (GXW4216)

Mounting

• Desktop and rack mount with front brackets

LED Indicators

•  Power, LAN Link/Activity, Hard Drive Activity

Short & Long Haul

•  2 REN, up to 2km 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, EN16000-3-3, EN60950-1, RoHS
• C-TICK; AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AN/NZS 60950
• ITU-T K.21 (Basic Test Level); UL 60950 (power adapter)