The Grandstream GXW4248 V2
is a next generation analog VoIP gateway featuring high-density and performance. The gateway is fully compliant with SIP standard and interoperable with various VoIP systems, analog PBX and phones on the market. The GXW4248 V2 features multiple FXS analog telephone ports, superb voice quality, rich telephony functionalities, easy provisioning, flexible dialing plans, advanced security protection, and strong performance in handling high volume voice calls.
Grandstream GXW4248 V2 FXS Analog VoIP Gateway Key Features
- 48 FXS ports
- 1 Gigabit network port
- 132×48 backlit graphic display with support for multiples languages
- 4 SIP server profiles per system, independent SIP account per port
- Supports 16KHz wide-band voice sampling rate and wide-band codecs such as Opus and G.722
- Carrier-grade security features including secure boot, unique certificate and random default password per device, dual firmware images
- Supports simultaneous 3-way voice conferencing per port
- Supports GDMS (cloud) provisioning/monitoring
The GXW4248 V2 offers both small and medium businesses a cost-effective hybrid IP and analog telephone system that allows users to enjoy the benefits of VoIP communications while still preserving investment on existing analog phones, Fax machines and legacy PBX systems.
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
Additional information
| Audio / Voice Quality | HD Voice |
|---|---|
| Bluetooth & WIFI | Not Supported |
| Concurrent Calls | 48 Concurrent Calls |
| Display Type | LCD Display |
| FXO Ports | None |
| FXS Ports | 48 Ports |
| Management Platform | GDMS Networking (Cloud), Local Web GUI |
| Mounting Options | Desktop, Rack Mount |
| POE | Not Support POE |
| Ports | 1 Port |
| Ports Speed | 1G |
| Video Conferencing | Not Supported |
