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Grandstream GXW4504 Voip Gateway

The Grandstream GXW4504 Digital VoIP Gateway supports 120 concurrent calls and has four T1/E1/J1 spans.

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The GXW4500 series of E1/T1 Digital VoIP Gateways enable the integration of digital PSTN and ISDN trunks with VoIP networks. Businesses can significantly increase the number of PSTN/ISDN trunks integrated with their VoIP network by connecting the GXW4500 series to a VoIP network and a traditional PBX or E1/T1 provider. To meet the VoIP needs of large and medium-sized businesses, the GXW4500 series includes three models that provide 1, 2, or 4 T1/E1/J1 spans and support 30, 60, or 120 concurrent calls. To protect calls and accounts, it employs TLS and SRTP security encryption technology. Dual Gigabit network ports with a configurable integrated NAT router, and software-configurable E1/T1/J1 port that supports PRI, SS7, and MFC R2. Up to 120 concurrent calls are supported, as well as multi-language voice prompts and T.38 fax. Provisioning via HTTPS/TFTP is automated using XML configuration files. G.722, G.729, iLBC, and other popular voice codecs are supported.


  • Support for 120 concurrent VoIP calls.
  • Dual Gigabit RJ45 network ports with auto-sensing and an integrated NAT router.
  • TLS and SRTP security encryption technology are used to safeguard calls and accounts.
  • (2) USB 3.0 ports and (1) SD card interface.
  • Provisioning via HTTP/TFTP is automated using XML configuration files.
  • 4 software-configurable E1/T1/J1 ports, PRI, SS7, and MFC R2 support.
  • Supports numerous voice codecs, including G.722, G.729, iLBC, and others.

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