The Grandstream HT813 1 FXS 1 FXO ATA is a hybrid analogue telephone adaptor designed to connect traditional analogue telephones and PSTN lines to SIP-based VoIP networks. Featuring one FXS port and one FXO port, the HT813 provides a flexible solution for users who need both analogue device…
£75.00
The Grandstream HT813 1 FXS 1 FXO ATA is a hybrid analogue telephone adaptor designed to connect traditional analogue telephones and PSTN lines to SIP-based VoIP networks. Featuring one FXS port and one FXO port, the HT813 provides a flexible solution for users who need both analogue device connectivity and PSTN line integration. It is suitable for home users, small businesses, branch offices, and organisations migrating from traditional telephony systems while maintaining backup line support. The HT813 also includes built-in lifeline support, allowing the FXS port to automatically connect to the FXO PSTN line during power failures.
The HT813 combines VoIP functionality with traditional telephony integration through its compact design, advanced voice features, automated provisioning capabilities, and strong security protection.
The HT813 allows users to retain existing analogue telephones and PSTN lines while adding SIP-based communication capabilities. This reduces equipment replacement costs and provides a simpler migration path to VoIP services.
The integrated FXO port and lifeline capability provide additional resilience by maintaining communication availability during power outages or internet disruptions.
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.
The Grandstream HT813 1 FXS 1 FXO ATA is a hybrid analogue telephone adaptor designed to connect traditional analogue telephones and PSTN lines to SIP-based VoIP networks. Featuring one FXS port and one FXO port, the HT813 provides a flexible solution for users who need both analogue device connectivity and PSTN line integration. It is suitable for home users, small businesses, branch offices, and organisations migrating from traditional telephony systems while maintaining backup line support. The HT813 also includes built-in lifeline support, allowing the FXS port to automatically connect to the FXO PSTN line during power failures.
The HT813 combines VoIP functionality with traditional telephony integration through its compact design, advanced voice features, automated provisioning capabilities, and strong security protection.
The HT813 allows users to retain existing analogue telephones and PSTN lines while adding SIP-based communication capabilities. This reduces equipment replacement costs and provides a simpler migration path to VoIP services.
The integrated FXO port and lifeline capability provide additional resilience by maintaining communication availability during power outages or internet disruptions.