The GXW4500 series are E1/T1 Digital VoIP Gateways that allow digital PSTN and ISDN trunks to be integrated with VoIP networks. By connecting the GXW4500 series with a VoIP network and a traditional PBX or E1/ T1 provider, businesses can drastically increase the amount of PSTN/ISDN trunks integrated with their VoIP network. The GXW4500 series offers three models that provide 1, 2 or 4 E1/T1/J1 spans and support 30, 60 or 120 concurrent calls to cater to the VoIP needs of large and medium sized enterprises.

Product Features:

• E1/T1/J1 Digital VoIP Gateway for integrating digital PSTN and ISDN trunks with VoIP networks
• 1 software-configurable E1/T1/J1 port and supports PRI, SS7 and MFC R2
• Dual Gigabit network ports with a configurable integrated NAT router
• 30 concurrent calls, multi-language voice prompts and T.38 fax
• Automated provisioning by HTTPs/TFTP with XML config files
• Supports nearly all the popular voice codecs including Opus, G.722, G.711, G.729, G.723, iLBC, G.726, GSM-FR and more
• Includes 2 USB 3.0 ports and 1 SD card interface for expandable memory
• The GXW4500 series will offer two additional models that provide 2 or 4 T1/E1/J1 spans and support or 120 concurrent calls

• E1/T1/J1 Interface: 1/2/4 RJ45 ports, supporting up to 30/60/120 simultaneous VoIP calls
• Network Interfaces: Dual self-adaptive Gigabit ports (switched or routed)
• Peripheral Ports: (2) USB 3.0, (1) SD card interface
• LED Indicators: LAN, WAN, E1/T1/J1
• LCD Display: 128x32 dot matrix graphic LCD with DOWN and OK buttons
• Reset Switch: Yes, long press for factory reset and short press for reboot
• 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, iLBC, AAL2-G.726-32