{"id":5913,"date":"2023-05-16T11:01:46","date_gmt":"2023-05-16T11:01:46","guid":{"rendered":"https:\/\/viptel.hu\/?post_type=product&p=5913"},"modified":"2026-08-05T16:04:49","modified_gmt":"2026-08-05T16:04:49","slug":"grandstream-ht812-telefonadapter","status":"publish","type":"product","link":"https:\/\/viptel.hu\/en\/product\/grandstream-ht812-telefonadapter\/","title":{"rendered":"Grandstream HT812 Telephone Adapter"},"content":{"rendered":"
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The HT812 is a high-performance, 2-port VoIP gateway with two FXS ports and a gigabit connection, as well as an integrated NAT router. Based on Grandstream's market-leading SIP\/ATA gateway technology, used in countless installations worldwide, it offers an excellent range of ATA features and equipment, along with the very high voice quality typical of Grandstream. Extensive security facilities, such as the “unique security certificate\/unit”, together with comprehensive management and provisioning options, make Grandstream ATAs ideal for a wide range of application scenarios.<\/div>\n<\/div>\n
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Highlights:<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    Support for two SIP profiles and 2 FXS ports<\/div>\n<\/li>\n
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    AES encryption with security certificate<\/div>\n<\/li>\n
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    Automated and secure provisioning options via TR069<\/div>\n<\/li>\n
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    3 conference options per port<\/div>\n<\/li>\n
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    Excellent voice quality thanks to the wideband HD codec<\/div>\n<\/li>\n
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    Supports T.38 fax for reliable fax-over-IP transmission<\/div>\n<\/li>\n
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    2 gigabit network connections<\/div>\n<\/li>\n
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    High-performance NAT router<\/div>\n<\/li>\n<\/ul>\n
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    scope of delivery<\/div>\n
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    • Grand Stream HT812 2FXS Gateway<\/li>\n
    • adapter<\/li>\n<\/ul>\n<\/div>\n
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      router features<\/div>\n
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        Network address translation (NAT)<\/div>\n<\/li>\n
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        Telephone function (VoIP)<\/div>\n<\/li>\n<\/ul>\n
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        power supply<\/div>\n
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          power supply<\/div>\n<\/li>\n
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          Output voltage: 12V<\/div>\n<\/li>\n
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          Input voltage: 100-240V<\/div>\n<\/li>\n<\/ul>\n
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          system connections<\/div>\n
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            Number of 10\/100\/1000 Mbit\/s Ethernet ports: 2<\/div>\n<\/li>\n<\/ul>\n
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            basic features<\/div>\n
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              Colour: black<\/div>\n<\/li>\n
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              Height: 130mm<\/div>\n<\/li>\n
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              Width: 28.8 mm<\/div>\n<\/li>\n
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              Depth: 90mm<\/div>\n<\/li>\n
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              Weight: 353.33g<\/div>\n<\/li>\n
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              Product type: Gateway<\/div>\n<\/li>\n<\/ul>\n
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              technical description<\/div>\n
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                2 RJ11 FXS ports<\/div>\n<\/li>\n
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                reset button<\/div>\n<\/li>\n
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                QoS<\/div>\n<\/li>\n<\/ul>\n
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                network protocols<\/div>\n
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                  TCP\/IP\/UDP, RTP\/RTCP, HTTP\/HTTPS, ARP\/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP over TCP\/TLS, SRTP, TR-069<\/div>\n<\/li>\n<\/ul>\n
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                  voice codecs<\/div>\n
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                    G.711 with Annex I (PLC) and Annex II (VAD\/CNG), G.723.1, G.729A\/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced echo cancellation<\/div>\n<\/li>\n<\/ul>\n
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                    Provisioning and management<\/div>\n
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                      HTTP, HTTPS, TELNET, TFTP, TR-069, secure and automatic provisioning via AES encryption, syslog<\/div>\n<\/li>\n<\/ul>\n
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                      Fax over IP<\/div>\n
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                        T.38 compliant Group 3 fax relay up to 14.4 kbps and automatic switchover to G.711 for fax transmission<\/div>\n<\/li>\n<\/ul>\n
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                        Caller ID<\/div>\n
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                          Bellcore Type 1 and 2, ETSI, BT, NTT and DTMF-based Caller ID<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

                          \n<\/div>","protected":false},"excerpt":{"rendered":"

                          A HT812 egy nagy teljes\u00edtm\u00e9ny\u0171, 2 portos VoIP \u00e1tj\u00e1r\u00f3, k\u00e9t FXS \u00e9s egy gigabites kapcsolattal, valamint integr\u00e1lt NAT routerrel rendelkezik.\u00a0A Grandstream piacvezet\u0151 SIP\/ATA gateway technol\u00f3gi\u00e1j\u00e1n alapul\u00f3, amelyet vil\u00e1gszerte sz\u00e1mtalan telep\u00edt\u00e9sben<\/p>","protected":false},"featured_media":5918,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"pwb-brand":[244],"product_brand":[],"product_cat":[245],"product_tag":[],"class_list":["post-5913","product","type-product","status-publish","has-post-thumbnail","pwb-brand-grandstream","product_cat-atjarok-gateway","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"brands":[{"id":244,"name":"Grandstream","slug":"grandstream"}],"_links":{"self":[{"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product\/5913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/comments?post=5913"}],"version-history":[{"count":2,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product\/5913\/revisions"}],"predecessor-version":[{"id":5920,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product\/5913\/revisions\/5920"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/media\/5918"}],"wp:attachment":[{"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/media?parent=5913"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/pwb-brand?post=5913"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product_brand?post=5913"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product_cat?post=5913"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/viptel.hu\/en\/wp-json\/wp\/v2\/product_tag?post=5913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}