{"product_id":"grandstream-sip-ata-4-port-fxo-gateway-ht-841","title":"Grandstream HT841 4-Port FXO Gateway with Gigabit NAT Router","description":"\u003cdiv style=\"color: #000000;\"\u003e\n\u003ch2 style=\"color: #000000;\"\u003eBridge Your Analog Phone Lines to a Modern VoIP Network\u003c\/h2\u003e\n\u003cp style=\"color: #000000;\"\u003eThe Grandstream HT841 is a high-performance 4-port FXO gateway designed for businesses of all sizes looking to integrate their traditional analog telephone lines with an IP-based VoIP system. This powerful device allows you to seamlessly connect multiple office locations to any hosted or on-premise IP PBX network, simplifying your transition to VoIP. With the HT841, you can leverage the cost savings and advanced features of VoIP telephony while preserving your investment in existing analog infrastructure.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #000000;\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul style=\"color: #000000;\"\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eSeamless Connectivity:\u003c\/strong\u003e Features 4 RJ11 FXO ports to connect your PSTN lines and 1 RJ11 FXS port for an analog telephone or fax machine.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eHigh-Performance Networking:\u003c\/strong\u003e Equipped with two Gigabit (10\/100\/1000Mbps) RJ45 ports and a built-in high-performance NAT router for efficient traffic handling.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003ePower Outage Protection:\u003c\/strong\u003e Lifeline support ensures that in the event of a power failure, the FXS port is hard-relayed to an FXO port, maintaining basic call functionality.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eAdvanced Telephony Features:\u003c\/strong\u003e Supports 3 SIP profiles and a wide range of calling features, including Caller ID, call waiting, call transfer, 3-way conferencing per port, and do not disturb.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eSuperior Voice Quality:\u003c\/strong\u003e Delivers crystal-clear conversations with support for numerous voice codecs like G.711, G.729, and Opus, plus advanced line echo cancellation and a dynamic jitter buffer.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eReliable Fax over IP:\u003c\/strong\u003e T.38 Fax relay support ensures dependable transmission of faxes over your IP network.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eRobust Security:\u003c\/strong\u003e Protect your calls and accounts with strong AES encryption, TLS, and SRTP security protocols.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eSimplified Management:\u003c\/strong\u003e Features automated and secure provisioning options using TR-069, making deployment and ongoing management effortless.\u003c\/li\u003e\n  \u003cli style=\"color: #000000;\"\u003e\n\u003cstrong\u003eFailover Support:\u003c\/strong\u003e A failover SIP server automatically switches to a secondary server if the primary one loses connection, ensuring service continuity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #000000;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; color: #000000;\"\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\" colspan=\"2\"\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eTelephony Interface\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e4 x RJ11 FXO ports, 1 x RJ11 FXS port (with lifeline support)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eNetwork Interface\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e2 x 10\/100\/1000Mbps RJ45 ports (one with 802.3af PoE-PD support)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eLED Indicators\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003ePower, NET1, NET2, FXS, FXO\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\" colspan=\"2\"\u003e\u003cstrong\u003eVoice, Fax, Modem\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eTelephony Features\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eCaller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eVoice Codecs\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eG.711 with Annex I (PLC) and Annex II (VAD\/CNG), G.723.1, G.729, G.726, iLBC, OPUS\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eFax over IP\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eT.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eCaller ID\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eBellcore Type 1 \u0026amp; 2, ETSI, BT, NTT, and DTMF-based CID\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\" colspan=\"2\"\u003e\u003cstrong\u003eSignaling \u0026amp; Control\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eNetwork Protocols\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eTCP\/IP\/UDP, RTP\/RTCP, HTTP\/HTTPS, ARP\/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, STUN, SIP (RFC3261), SIP over TCP\/TLS, SRTP, TR-069\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eQoS\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eLayer 2 (802.1Q VLAN, SIP\/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eProvisioning\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eHTTP, HTTPS, TFTP, SSH, TR-069, secure and automated provisioning using AES encryption\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eSecurity\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eSRTP, TLS\/SIPS\/HTTPS, AES encryption\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\" colspan=\"2\"\u003e\u003cstrong\u003ePhysical\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003ePower\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eDC Input: 12V\/1A; PoE Input: 802.3af (48V\/0.5A) (Power Supply Not Included)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eDimensions\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e7.48 x 3.94 x 1.1 in (190 x 100 x 28 mm)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eWeight\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e1.01 lbs (0.458 kg)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eEnvironmental\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eOperating Temperature: 32ºF to 104ºF (0ºC to 40ºC); Humidity: 10% to 90% Non-condensing\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Grandstream","offers":[{"title":"Default Title","offer_id":48505560629488,"sku":"GS-HT-841","price":2631.98,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/0989\/1568\/files\/14252.jpg?v=1765557071","url":"https:\/\/nexgencomputing.co.za\/products\/grandstream-sip-ata-4-port-fxo-gateway-ht-841","provider":"NexGen Computing","version":"1.0","type":"link"}