Market Overview

Grandstream Releases New Hybrid ATA with FXS and FXO Ports


The HT813 features 1 FXS port, 1 PSTN FXO port and an integrated

Grandstream, connecting the world since 2002 with award-winning SIP
unified communication solutions, today released a new addition to their
market-leading HT series of Analog Telephone Adapters. The HT813
offers one FXS port for integration of analog telephones and fax
machines with VoIP services, one FXO port for call termination and
interfacing with traditional PSTN networks, and an integrated NAT
router. With a sleek compact design, HD voice quality and advanced
security protection, the HT813 is ideal for service providers and
end-users looking to integrate analog endpoints with VoIP services.

The HT813 comes equipped in an easy-to-use, award-winning design with
color-coded ports and LED status indicators. By adding market leading
VoIP functionalities, advanced security protection and flexible
auto-provisioning options, the HT813 extends Grandstream's legacy of
producing the best ATAs on the market. Additional features of this
hybrid ATA include:

  • Supports up to 2 SIP profiles through 1 FXS port and FXO port
  • Advanced telephony functions including 3-way conferencing, T.38
    fax-over-IP, wide range of caller ID formats, carrier-grade line echo
    cancellation, and more
  • In addition to the full feature set of a PSTN/FXO gateway, the device
    offers Lifeline support in case of power outage (FXS port will be
    hard-relayed to FXO port in case of power outage)
  • Strong security protection including unique security certificate per
  • Automated and secure provisioning options using TR069 and XML config
  • Exceptional voice quality with support for wideband HD codec such as
    Opus, G.722 and all the popular narrow band voice codec such as G.711,
    G.729, G.723, G.726, iLBC, etc.
  • Redundant SIP server failover and dual firmware image for enhanced

Product Resources
to visit the product page for the HT813 which includes product
datasheets and links to technical resources, guides and firmware.

Price and Availability
The HT813 is generally available for
purchase now through Grandstream's worldwide distribution channels at a
list price of $95USD.

Grandstream Networks, Inc. has
been connecting the world since 2002 with SIP Unified Communications
products and solutions that allow businesses to be more productive than
ever before. Our award-winning solutions serve the small and medium
business and enterprises markets and have been recognized throughout the
world for their quality, reliability and innovation. Grandstream
solutions lower communication costs, increase security protection and
enhance productivity. Their open standard SIP-based products offer broad
interoperability throughout the industry, along with unrivaled features
and flexibility. Visit
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