Grandstream HT813 VoIP Gateway – Analog Telephone Adapter with FXS and FXO Ports

The Grandstream HT813 VoIP Gateway is a versatile analog telephone adapter designed to seamlessly integrate traditional analog devices with modern VoIP systems. Featuring one FXS port for connecting analog phones or fax machines and one FXO port for PSTN line backup, this compact device ensures reliable communication and failover support during power outages. Its hybrid design allows remote calling to and from the PSTN line, making it ideal for both residential and business applications. The HT813 supports high-definition voice quality, advanced security features, and multiple auto-provisioning options, enabling service providers to deliver high-quality IP services efficiently.

Built with security in mind, the HT813 incorporates strong AES encryption and a dedicated security certificate for each unit, safeguarding your communications against unauthorized access. It supports T.38 Fax over IP, ensuring reliable fax transmission over VoIP networks. The device's failover SIP server automatically switches to a secondary server if the primary connection is lost, maintaining uninterrupted service. Additionally, the device supports 3-way voice conferencing per port, enhancing collaboration capabilities. Automated provisioning via TR069 simplifies deployment and management, making the device suitable for large-scale installations. Dual 100Mbps LAN and WAN ports provide flexible network connectivity options, supporting multiple SIP profiles through its FXS and FXO ports.

Designed in China by Grandstream Networks, Inc., the HT813 is lightweight at approximately 5 ounces, making it easy to install and manage. Its compact size and advanced features make it an excellent choice for upgrading traditional telephony systems to VoIP, ensuring high-quality, secure, and reliable communication for users and service providers alike.

Features:

• Strong AES encryption with security certificate per unit

• Supports T.38 Fax for reliable Fax-over-IP

• Failover SIP server automatically switches to secondary server if main server loses connection

• 3-way voice conferencing per port

• Automated & secure provisioning options using TR069

• Lifeline support (FXS port will be hard-relayed to FXO port) in case of power outage

• Dual 100Mbps LAN and WAN ports

• Supports 2 SIP profiles through 1 FXS port and 1 FXO port