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Grandstream HT841 Analog FXO Gateways

Grandstream HT841 Analog FXO Gateways

The Grandstream HT841 Analog FXO Gateway is a hybrid VoIP gateway designed to connect traditional analogue PSTN (POTS) telephone lines to SIP-based IP PBX systems. It is part of Grandstream’s HT8xx series and is typically used to bridge legacy telephone infrastructure with modern VoIP networks…

£120.00

The Grandstream HT841 Analog FXO Gateway is a hybrid VoIP gateway designed to connect traditional analogue PSTN (POTS) telephone lines to SIP-based IP PBX systems. It is part of Grandstream’s HT8xx series and is typically used to bridge legacy telephone infrastructure with modern VoIP networks in business environments.

Featuring 4 FXO ports and 1 FXS port, the HT841 allows organisations to integrate multiple PSTN lines into a VoIP system while still supporting a single analogue device (such as a phone or fax machine) locally. It also includes an integrated NAT router and supports advanced telephony features for flexible deployment in hybrid communication environments.

Ideal For

  • Small to medium-sized businesses
  • Branch offices and remote sites
  • Hybrid PSTN + VoIP deployments
  • Call routing and SIP trunk integration
  • Legacy PBX migration projects
  • Failover PSTN line support

Benefits

The HT841 enables organisations to connect existing analogue phone lines directly into a VoIP system, helping to reduce dependency on traditional PBX infrastructure. It provides a cost-effective migration path to SIP while maintaining PSTN connectivity for redundancy or local calling.

Its built-in routing and provisioning capabilities make it suitable for distributed or multi-site deployments where reliability and failover are important.

  • 4 FXO ports for PSTN (analogue line) connectivity
  • 1 FXS port for analogue telephone/fax
  • Supports up to 3 SIP profiles
  • Integrated high-performance NAT router
  • T.38 Fax-over-IP support
  • Lifeline support (FXS port can route through FXO during power loss)
  • 3-way voice conferencing per port
  • TLS and SRTP encryption
  • Automated provisioning (TR-069 / XML / HTTP / TFTP)
  • Failover SIP server support
  • Broad SIP interoperability
  • Carrier-grade voice quality with echo cancellation
  • GDMS cloud management support

Telephony Features

  • 4 × RJ11 FXO ports (PSTN lines)
  • 1 × RJ11 FXS port (analogue device)
  • Supports up to 3 SIP server profiles
  • Caller ID support
  • Call waiting, hold, transfer, forwarding
  • Do Not Disturb (DND)
  • 3-way conferencing
  • Flexible dial plan support
  • T.38 Fax relay up to 14.4kbps

Network Interfaces

  • 2 × 10/100/1000Mbps Gigabit Ethernet ports
  • Integrated NAT router functionality
  • DHCP client/server support
  • QoS support

Audio Features

  • G.711, G.723.1, G.726, G.729A/B, iLBC, Opus codec support
  • Advanced line echo cancellation
  • Dynamic jitter buffer
  • Silence suppression

Security

  • TLS and SRTP encryption
  • HTTPS secure management
  • AES encryption with device-level certificate
  • Secure provisioning support

Management

  • TR-069 provisioning
  • XML configuration support
  • Web-based management interface
  • GDMS cloud device management

Physical

  • Desktop / rack-adjacent installation design
  • LED indicators for power, network, FXS and FXO ports
  • Compact enterprise gateway form factor
  • Grandstream HT841 Analog FXO Gateway
  • Power Supply Unit (PSU)
  • Ethernet cable
  • Quick installation guide
  • Warranty documentation

Next Day Delivery
For UK orders received before 1pm Monday to Friday, we operate a next business day delivery service, subject to availability. We use next day services from the leading delivery companies.

Specific Time Delivery
If you need an item urgently, or delivered at a specific time, please contact us.

Delivery Methods
We use several leading delivery companies. The majority of our deliveries are made by DPD, including most international orders.

Shipping prices are calculated during the checkout process. We deliver to almost every country. For international delivery services, we use DHL, a high quality, fast delivery service. Prices are provided based on the weight of the order; this is calculated when you reach the checkout.

For full shipping information please visit our shipping page.

Overview

The Grandstream HT841 Analog FXO Gateway is a hybrid VoIP gateway designed to connect traditional analogue PSTN (POTS) telephone lines to SIP-based IP PBX systems. It is part of Grandstream’s HT8xx series and is typically used to bridge legacy telephone infrastructure with modern VoIP networks in business environments.

Featuring 4 FXO ports and 1 FXS port, the HT841 allows organisations to integrate multiple PSTN lines into a VoIP system while still supporting a single analogue device (such as a phone or fax machine) locally. It also includes an integrated NAT router and supports advanced telephony features for flexible deployment in hybrid communication environments.

Ideal For

  • Small to medium-sized businesses
  • Branch offices and remote sites
  • Hybrid PSTN + VoIP deployments
  • Call routing and SIP trunk integration
  • Legacy PBX migration projects
  • Failover PSTN line support

Benefits

The HT841 enables organisations to connect existing analogue phone lines directly into a VoIP system, helping to reduce dependency on traditional PBX infrastructure. It provides a cost-effective migration path to SIP while maintaining PSTN connectivity for redundancy or local calling.

Its built-in routing and provisioning capabilities make it suitable for distributed or multi-site deployments where reliability and failover are important.

  • 4 FXO ports for PSTN (analogue line) connectivity
  • 1 FXS port for analogue telephone/fax
  • Supports up to 3 SIP profiles
  • Integrated high-performance NAT router
  • T.38 Fax-over-IP support
  • Lifeline support (FXS port can route through FXO during power loss)
  • 3-way voice conferencing per port
  • TLS and SRTP encryption
  • Automated provisioning (TR-069 / XML / HTTP / TFTP)
  • Failover SIP server support
  • Broad SIP interoperability
  • Carrier-grade voice quality with echo cancellation
  • GDMS cloud management support

Telephony Features

  • 4 × RJ11 FXO ports (PSTN lines)
  • 1 × RJ11 FXS port (analogue device)
  • Supports up to 3 SIP server profiles
  • Caller ID support
  • Call waiting, hold, transfer, forwarding
  • Do Not Disturb (DND)
  • 3-way conferencing
  • Flexible dial plan support
  • T.38 Fax relay up to 14.4kbps

Network Interfaces

  • 2 × 10/100/1000Mbps Gigabit Ethernet ports
  • Integrated NAT router functionality
  • DHCP client/server support
  • QoS support

Audio Features

  • G.711, G.723.1, G.726, G.729A/B, iLBC, Opus codec support
  • Advanced line echo cancellation
  • Dynamic jitter buffer
  • Silence suppression

Security

  • TLS and SRTP encryption
  • HTTPS secure management
  • AES encryption with device-level certificate
  • Secure provisioning support

Management

  • TR-069 provisioning
  • XML configuration support
  • Web-based management interface
  • GDMS cloud device management

Physical

  • Desktop / rack-adjacent installation design
  • LED indicators for power, network, FXS and FXO ports
  • Compact enterprise gateway form factor