Ht841

The Grandstream HT841 is a professional Analog FXO Gateway designed to connect traditional PSTN telephone lines with modern VoIP and IP-PBX systems. It provides a reliable and cost-effective solution for businesses looking to integrate existing analog phone infrastructure into an IP-based communication environment without replacing their existing telephone lines.

The HT841 features 4 RJ11 FXO ports for connecting PSTN lines and 1 RJ11 FXS port for connecting an analog telephone or other compatible analog device. It supports up to 3 SIP profiles, providing flexible integration with hosted or on-premise IP PBX platforms.

The device also includes a built-in high-performance NAT router and two Gigabit Ethernet ports, with one port supporting 802.3af PoE-PD, providing flexible network deployment options. Its advanced telephony, security, provisioning, and failover features make it suitable for business offices, branch locations, and hybrid VoIP environments.

Key Features

• 4 × RJ11 FXO ports for PSTN telephone line connectivity.

• 1 × RJ11 FXS port for analog telephone or device connectivity.

• Supports up to 3 SIP profiles.

• 2 × 10/100/1000Mbps RJ45 Ethernet ports.

• One network port supports 802.3af PoE-PD.

• Built-in high-performance NAT router.

• Supports 3-way voice conferencing per port.

• Supports T.38 Fax over IP for reliable fax transmission.

• Automatic failover to a secondary SIP server if the primary server becomes unavailable.

• Lifeline support allows the FXS port to be hard-relayed to an FXO port during a power outage.

• Supports multiple caller ID formats.

• Advanced telephony features including call waiting, call transfer, call forwarding, call hold, Do Not Disturb, and 3-way conferencing.

• Supports multiple voice codecs including Opus, G.711, G.723.1, G.729, G.726, and iLBC.

• Advanced line echo cancellation and dynamic jitter buffer.

• Supports SRTP, TLS/SIPS, HTTPS, and AES encryption for enhanced security.

• Secure and automated provisioning through TR-069 and other provisioning methods.

• Supports VLAN and QoS features for optimized voice traffic.

• Compatible with leading IP-PBX and SIP-based platforms.

• Supports Zero Configuration provisioning when used with Grandstream UCM IP PBXs.

• Compact design suitable for business and branch deployments.

Applications

The HT841 is ideal for:

• Business offices.

• Small and medium-sized enterprises.

• Branch offices.

• Hotels and hospitality environments.

• Hybrid analog/VoIP telephone systems.

• PSTN-to-IP telephony integration.

• Connecting traditional telephone lines to IP-PBX systems.

• Fax-over-IP deployments.

The Grandstream HT841 provides a reliable bridge between traditional PSTN infrastructure and modern VoIP networks, helping organizations preserve their existing analog telephone investment while benefiting from the flexibility and scalability of IP-based communications.