Grandstream HT813: Hybrid ATA with PSTN
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Grandstream HT813: Hybrid ATA with PSTN

Grandstream HT813: Hybrid ATA with PSTN Lifeline for Businesses

The Grandstream HT813 is a uniquely versatile Analog Telephone Adapter (ATA) designed to bridge traditional PSTN lines with modern VoIP services, offering a robust solution for businesses and users in Dubai. This hybrid ATA features one analog telephone FXS port to connect a standard analog phone or fax machine, and one PSTN line FXO port, which provides critical backup lifeline support. In the event of a power outage or internet service disruption, the HT813 can automatically route calls via the PSTN line, ensuring uninterrupted communication—a vital feature for many organizations across the UAE.

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Grandstream HT813: Hybrid ATA with PSTN Lifeline for Businesses

The Grandstream HT813 is a uniquely versatile Analog Telephone Adapter (ATA) designed to bridge traditional PSTN lines with modern VoIP services, offering a robust solution for businesses and users in Dubai. This hybrid ATA features one analog telephone FXS port to connect a standard analog phone or fax machine, and one PSTN line FXO port, which provides critical backup lifeline support. In the event of a power outage or internet service disruption, the HT813 can automatically route calls via the PSTN line, ensuring uninterrupted communication—a vital feature for many organizations across the UAE. Its ultra-compact size, combined with Grandstream’s renowned HD voice quality and advanced VoIP functionalities, makes it an ideal choice for converting analog technology to IP-based systems in Abu Dhabi and beyond.

For entities in the UAE seeking a reliable and flexible ATA, the HT813 supports two SIP profiles through its FXS and FXO ports, enabling remote calling to and from the PSTN line. This capability allows businesses in Dubai to leverage cost-effective VoIP services while retaining their existing PSTN connection for backup or specific calling needs. The device includes dual 100Mbps LAN and WAN ports, automated and secure provisioning options using TR-069, and strong AES encryption with a unique security certificate per unit. As a leading Grandstream solution in the MEA region, the HT813 empowers users in Abu Dhabi with enhanced voice clarity, robust security, and the assurance of PSTN failover, facilitating a smooth and resilient transition to advanced IP communications.

Grandstream HT813: Seamlessly Integrating PSTN and VoIP for Dubai and Abu Dhabi

The Grandstream HT813 is a distinctive Analog Telephone Adapter (ATA) that carves a unique niche by offering robust hybrid connectivity, seamlessly merging traditional Public Switched Telephone Network (PSTN) lines with modern Voice over IP (VoIP) services. This capability is particularly valuable for businesses and individuals in Dubai who wish to leverage the cost benefits and advanced features of VoIP while maintaining the reliability and familiarity of their existing analog phone lines. The HT813 features one FXS port for connecting an analog telephone or fax machine and one FXO port for connecting to a PSTN line. This dual-port design not only allows for the integration of analog devices into a VoIP network but critically provides PSTN lifeline support. In the event of a power failure or internet outage, the FXS port is automatically hard-relayed to the FXO port, ensuring that calls can still be made and received via the traditional phone line. This failover feature is a significant advantage for users in Abu Dhabi and across the UAE who require uninterrupted communication.

The HT813 supports two SIP profiles, enabling flexible call routing and management between the VoIP network and the PSTN line. Users can make outbound calls via VoIP or PSTN and receive calls from either network on their connected analog phone. This hybrid functionality makes the HT813 an ideal solution for small businesses in Dubai looking to gradually transition to VoIP without completely abandoning their PSTN infrastructure. For any Grandstream distributor in Dubai, the HT813 offers a compelling solution for customers needing this specific blend of old and new telephony technologies.

PSTN Lifeline Support: A Critical Feature for UAE Businesses

The standout feature of the Grandstream HT813 is its PSTN lifeline support. For many businesses in Dubai and Abu Dhabi, particularly those in critical service sectors or those who simply cannot afford any communication downtime, the ability to maintain phone service during power or internet disruptions is non-negotiable. The HT813 addresses this need directly. When the device loses power or its connection to the VoIP server, it automatically switches the connected analog phone (via the FXS port) to the PSTN line (via the FXO port). This ensures that basic call functionality remains available, providing peace of mind and operational continuity. This feature is a key selling point for any Grandstream supplier in UAE catering to clients with high availability requirements.

This lifeline capability also allows for a phased migration to VoIP. Businesses in the UAE can install the HT813, start using VoIP for most of their calls to reduce costs, but keep their PSTN line active for incoming calls or as a reliable backup. This flexibility is crucial for a smooth transition and minimizes disruption to existing workflows.

Flexible Call Routing and Hybrid Connectivity for Dubai and Abu Dhabi

The HT813’s hybrid nature, with both FXS and FXO ports, enables sophisticated call routing options. It can be configured to route outgoing calls through either the VoIP service or the PSTN line based on dialing patterns or other criteria. For example, international calls could be routed via VoIP for cost savings, while local calls might use the PSTN line. Incoming calls from the PSTN line can be answered on the analog phone connected to the FXS port, and similarly, incoming VoIP calls are also directed to the same analog phone. This allows users in Dubai and Abu Dhabi to manage calls from both networks using a single, familiar analog device.

Furthermore, the HT813 can facilitate remote calling to and from the PSTN line. For instance, a user away from the office could dial into the HT813 via VoIP and then make an outbound call using the connected PSTN line. Conversely, calls to the PSTN line could potentially be forwarded over the IP network. These advanced routing capabilities, combined with support for two SIP accounts, provide considerable flexibility for tailoring the device to specific communication needs within the UAE market.

HD Voice Quality and Essential Telephony Features

Despite its focus on hybrid connectivity, the Grandstream HT813 does not compromise on voice quality for its VoIP operations. It supports a range of voice codecs, including G.711, G.723.1, G.729A/B, G.726-32, iLBC, and the wideband Opus codec, ensuring clear and natural-sounding voice calls when using VoIP services. The inclusion of Opus is particularly noteworthy as it provides excellent audio quality even in variable network conditions, which can be beneficial for users in Dubai or Abu Dhabi. Advanced line echo cancellation and a dynamic jitter buffer further contribute to a superior audio experience.

The HT813 also provides essential telephony features such as caller ID (supporting various regional standards including Bellcore Type 1 & 2, ETSI, BT, NTT), call waiting, call transfer (blind or attended), call forward, do not disturb, and 3-way voice conferencing per port. Reliable T.38 Fax-over-IP is supported for sending and receiving faxes over the IP network, a function still valued by many businesses in the UAE. These features ensure that users transitioning from traditional phone systems to VoIP via the HT813 do not lose out on familiar and critical functionalities. Grandstream phones in Dubai, when connected through the HT813, can thus benefit from both IP and PSTN worlds.

Robust Security and Efficient Management for the UAE Market

Security is a critical aspect of any network-connected device, and the Grandstream HT813 incorporates strong security measures to protect communications and the device itself. It features strong AES encryption with a unique security certificate per unit, safeguarding against unauthorized access. For VoIP communications, it supports TLS and SRTP encryption to secure both call signaling (SIP over TCP/TLS) and media streams, ensuring the privacy of conversations for users in Dubai and Abu Dhabi.

Grandstream is known for its efficient device management and provisioning, and the HT813 is no exception. It supports automated and secure provisioning options using TR-069 and XML configuration files. This allows service providers and IT administrators in the UAE to easily deploy, configure, and manage HT813 units remotely, reducing installation time and operational overhead. When used with Grandstream’s UCM series of IP PBXs, the HT813 can also benefit from Zero Configuration provisioning, further simplifying the setup process. A Grandstream partner in UAE can leverage these management features to provide efficient and scalable solutions to their clientele.

Network Connectivity and Quality of Service (QoS)

The HT813 is equipped with dual 100Mbps Ethernet ports (one WAN and one LAN) with an integrated NAT router. While not Gigabit like some other HT series models, these 100Mbps ports are generally sufficient for the SOHO or small business environments where the HT813 is typically deployed, especially when the primary focus is on reliable voice communication and PSTN backup rather than high-speed data routing for multiple users. The device supports Quality of Service (QoS) mechanisms, including Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS, as well as traffic shaping. These features allow for the prioritization of voice traffic, ensuring that call quality remains high even when the network is shared with other data traffic. This is important for maintaining clear communications for businesses in the UAE.

Ideal Use Cases for the HT813 in Dubai and Abu Dhabi

The Grandstream HT813 is particularly well-suited for specific use cases in Dubai, Abu Dhabi, and the broader MEA region. Small businesses that want to adopt VoIP for cost savings but need to retain their existing PSTN line for reliability or for specific services (like some alarm systems or POS terminals that require an analog line) will find the HT813 invaluable. Home users who want a backup for their VoIP service or wish to use their existing analog phone with both VoIP and PSTN services can also benefit.

Furthermore, the HT813 can be used in remote offices or branch locations within the UAE where a PSTN line is available and needs to be integrated with a central VoIP system. Its compact size and robust feature set make it an excellent choice for such distributed deployments. Service providers in Dubai can offer the HT813 as a specialized ATA for customers with these hybrid connectivity requirements, providing a reliable bridge between the analog and IP worlds. The Grandstream HT813 IP phone solution in Dubai, through its unique FXS/FXO hybrid design, offers a resilient and flexible approach to modern communications.

Specification:

  • Telephone Interfaces: One (1) RJ11 FXS port, One (1) RJ11 FXO PSTN line port with lifeline support
  • Network Interface: Two (2) 10/100Mbps ports (RJ45) with integrated NAT router
  • LED Indicators: POWER, LAN, WAN, FXS, FXO
  • Factory Reset Button: Yes
  • Telephony Features: Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
  • Voice Codecs:711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726-32, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation
  • Fax over IP:38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through
  • Short/Long Haul Ring Load: 3 REN: Up to 1km on 24 AWG line
  • Caller ID: Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
  • Dial Methods: DTMF, Pulse
  • Disconnect Methods: Busy Tone, Polarity Reversal/Wink, Loop Current
  • Network Protocols: TCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP (client and server), NTP, TFTP, SSH, TELNET, STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE
  • QoS: Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS), Traffic shaping
  • DTMF Method: In-audio, RFC2833 and/or SIP INFO
  • Provisioning and Control: HTTP, HTTPS, TFTP, SSH, TR-069, secure and automated provisioning using AES encryption, syslog
  • Security: Media: SRTP; Control: TLS/SIPS/HTTPS
  • Management: Syslog support, telnet, SSH, remote management using web browser
  • Universal Power Supply: Input: 100-240VAC, 50-60Hz; Output: 12V/0.5A
  • Environmental:
    • Operational: 32º – 104ºF or 0º – 40ºC
    • Storage: 14º – 140ºF or -10º – 60ºC
    • Humidity: 10 – 90% Non-condensing
  • Dimensions (L x W x D):5mm x 90.5mm x 29mm
  • Weight:142Kg
  • Compliance: FCC/CE/C-TICK/ITU-K.21

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