Grandstream GXW4501 E1/T1/J1 Digital VoIP Gateway

The Grandstream GXW4501 E1/T1/J1 Digital VoIP Gateway stands as a paradigm of robust communication technology. The device possesses one E1/T1/J1 interface and supports PRI, SS7 and MFC R2 digital signalling protocols. These features make it highly compatible with various international telephony systems, ensuring seamless integration into existing network infrastructure. Combined with a broad array of voice codecs, it offers optimal call quality, thus making it ideal for high volume communication demands.

The VoIP Gateway is equipped with dual Gigabit network ports with a combined built-in NAT router for robust data processing capabilities. The device also comes with TLS and SRTP security encryption technology, providing an added layer of protection for your communications. Notably, the Grandstream GXW4501 features automatic provisioning options like TR-069 and AES encrypted XML configuration file, promoting ease of use and rapid deployment. This coupled with its carrier-grade Line Echo Cancellation (LEC) system demonstrates the product’s commitment to enhancing user experience while maintaining top-notch call quality.

Further enhanced by its rich telephony features including caller ID, call waiting, 3-way conference and more, the GXW4501 maintains excellent call handling capabilities. Additionally, its failover capability ensures continuity in communication, even under unexpected network failures.

Interfaces

• T1/E1/J1 Interface: 1 RJ45 ports, supporting up to 30 simultaneous VoIP calls
• Network Interfaces: Dual self-adaptive Gigabit ports (switched or routed)
• Peripheral Ports: 2 x USB 3.0, (1) SD card interface
• LED Indicators: LAN, WAN, T1/E1/J1
• LCD Display: 128×32 dot matrix graphic LCD with DOWN and OK buttons
• Reset Switch: Yes, long press for factory reset and short press for reboot

Voice And Video Capabilities

• Voice-over-Packet Capabilities: LEC with NLP Packetized Voice Protocol Unit, 128ms-tail-length carrier grade Line Echo Cancellation, Dynamic Jitter Buffer, Modem detection & auto-switch to G.711
• Voice and Fax Codecs: G.711 A-law/U-law, G.722, G.723.1 5.3K/6.3K, G.726, G.729A/B, Opus, iLBC, GSM-FR, AAL2-G.726-32
• Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Passthrough, Fax data pump V.17, V.21, V.27ter, V.29 for T.38 fax relay
• Voice-quality Enhancement: Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), PLC
• QoS: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS

Signalling And Control

• DTMF Methods: In-band audio, RFC2833, and SIP INFO
• Digital Signaling: SIP (RFC 3261) over UDP/TCP/TLS, PRI, SS7, MFC R2, RBS (pending) PRI switch types: Euro ISDN, nation, Q.SIG CAS: MFC R2 (Argentina, Brazil, China, Czech Republic, Colombia, Ecuador, Indonesia, ITU, Mexico, Philippines, Venezuela) SS7: ITU, ANSI, China
• Upgrade: Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload
• Device Management: Syslog, HTTPS, Web browser, voice prompt, TR-069 management, backup and restore, port capture and packet capture
• Network Protocols: TCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, STUN, SRTP, TLS, LDAP, HDLC, HDLC-ETH, PPP, Frame Relay (pending), IPv6, OpenVPN®
• Status and statistic: Call status and history, device status monitoring and ISND status monitoring

Security

• Media Encryption: SRTP, TLS, HTTPS, SSH, 802.1X
• User-defined ports: SIP port, RTP port, HTTP/HTTPS port
• Advanced Defense: Fail2ban, alert events, Whitelist, Blacklist, strong password-based access control

Physical

• Universal Power Supply: Input: 100 ~ 240VAC, 50/60Hz; Output: DC+12V, 1.5A
• Physical & Dimensions: Unit Weight: x.xxx kg; Package Weight: x.xxx kg Unit Dimensions: 485mm(L) x 190mm(W) x 46mm (H)
• Temperature and Humidity: Operating: 32 – 113ºF / 0 ~ 45ºC, Humidity 10 – 90% (non-condensing) Storage: 14 – 140ºF / -10 ~ 60ºC, Humidity 10 – 90% (non-condensing)
• Mounting: Rack mount and desktop