Grandstream GXW4248 – Technical Specifications

Telephone Interfaces

• GXW4216/4224/4232: 16/24/32 x RJ11 & 1/1/2 50-pin Telco connectors
• GXW4248: 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 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

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

Universal Power Supply

• GXW4232/4224/4216: 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)

Physical

• 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)