Grandstream GXW4502 Digital VoIP Gateway

Grandstream GXW4502 Digital VoIP Gateway

he Grandstream GXW4502 is a high-performance 2-port E1/T1/J1 Digital VoIP Gateway designed to bridge digital PSTN/ISDN trunks with VoIP networks. It supports up to 60 concurrent calls, making it ideal for medium-sized enterprises and branch offices. The GXW4502 offers flexible configuration options, robust security features, and comprehensive voice quality enhancements, ensuring reliable and secure voice communications.

Grandstream GXW4502 Digital VoIP Gateway Specifications

• Digital Interface: 2 × E1/T1/J1 ports supporting up to 60 concurrent calls

• Network Interfaces: Dual self-adaptive Gigabit RJ-45 ports (switched or routed)

• Peripheral Ports: 2 × USB 3.0, 1 × SD card interfacehttps://www.city.co.ke

• LCD Display: 128×32 dot matrix graphic LCD with DOWN and OK buttons

• Voice Codecs: G.711 A-law/U-law, G.722, G.723.1 5.3K/6.3K, G.726, G.729A/B, iLBC, AAL2-G.726-32

• Fax Support: T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Passthrough

• Voice Quality Enhancements: Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), PLChttps://www.city.co.ke

• QoS Support: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS

• DTMF Methods: In-band audio, RFC2833, and SIP INFO

• Digital Signaling: SIP (RFC 3261) over UDP/TCP/TLS, PRI, SS7, MFC R2, RBS (pending)

• Security Features: SRTP, TLS, HTTPS, SSH, 802.1X

• Provisioning Methods: Automated provisioning by HTTP/TFTP with XML config files

• Power Supply: Input: 100 ~ 240VAC, 50/60Hz; Output: DC+12V, 2A

• Dimensions: 485mm (L) × 191mm (W) × 46.2mm (H)

• Mounting Options: Rack mount and desktop

• Operating Temperature: 0 ~ 45°C

• Storage Temperature: -10 ~ 60°C

• Humidity: 10% to 90% (non-condensing)