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Product Update: Grandstream HT813 ATA Integration with 8×8 UCaaS Services

by | Jun 25, 2025

8×8 now offers stronger support for the Grandstream HT813 Analog Telephone Adapter (ATA), making it easier for businesses to connect legacy analog phones with its modern UCaaS platform. This update helps bridge the gap between traditional phone systems and today’s VoIP solutions, especially useful for teams transitioning at their own pace.

Key Features of the Grandstream HT813 ATA

The Grandstream HT813 is a hybrid ATA device featuring both FXS and FXO ports, allowing seamless connectivity between analog devices and VoIP networks. Its notable features include:

  • Dual SIP Profiles: Supports two SIP profiles through one FXS and one FXO port.
  • Network Ports: Equipped with dual 100Mbps LAN and WAN ports.
  • Lifeline Support: Ensures continuous service by hard-relaying the FXS port to the FXO port during power outages.
  • Voice Conferencing: Offers 3-way voice conferencing per port.
  • Secure Provisioning: Facilitates automated and secure provisioning using TR069.
  • Fax Support: Compatible with T.38 Fax for reliable Fax-over-IP.
  • Failover SIP Server: Automatically switches to a secondary server if the primary server loses connection.
  • Enhanced Security: Utilizes strong AES encryption with a unique security certificate per unit.

Provisioning and Activation Enhancements

8×8 has streamlined the provisioning process for the HT813, catering to both V1 and V2 hardware versions. The updated procedure includes:

  • IP Address Retrieval: Users can now easily locate the device’s IP address by connecting an analog phone to the device and dialing specific codes.
  • Web GUI Access: Enhanced instructions for accessing the device’s web interface, with default credentials provided for initial login.
  • Configuration Server Path: Clear guidelines on setting the Config Server Path for seamless integration.
  • Firmware Management: Recommendations for firmware updates to ensure optimal performance and compatibility.

Overhead Paging Support

The HT813’s FXO port (port 2) now supports overhead paging systems, allowing businesses to integrate their existing paging infrastructure with 8×8’s VoIP services. This feature is particularly useful for organizations that rely on overhead announcements across various zones

Security Protocols and Best Practices

While the HT813 supports Secure Real-Time Transport Protocol (SRTP) for encrypted communications, 8×8 advises caution. Enabling SRTP may lead to issues with fax transmissions and analog device compatibility. Therefore, it’s recommended to disable SRTP when using the HT813 with fax machines, modems, or overhead paging systems.

FInal Thoughts

The integration between the Grandstream HT813 ATA and 8×8’s UCaaS platform allows businesses to connect existing analog systems to VoIP infrastructure. Recent improvements include streamlined provisioning, support for overhead paging, and clearer security guidelines, helping teams manage the transition with fewer technical hurdles.

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