{"product_id":"grandstream-ht841","title":"Grandstream HT841 4-Port FXO Gateway","description":"\u003cp\u003eThe Grandstream HT841 is an FXO gateway. It connects up to four analog phone lines from the phone company to your VoIP phone system, so you can keep existing copper lines (or a line you can't port yet) and still run everything else on SIP.\u003c\/p\u003e\u003cp\u003eOne FXS port is there for an analog phone or fax machine, and it doubles as a lifeline: if the power goes out, Grandstream hard-relays that FXS port to an FXO line, so a phone on it still works over the copper line.\u003c\/p\u003e\u003cp\u003eQuick guide to the two port types: an \u003cstrong\u003eFXS\u003c\/strong\u003e port \u003cem\u003eprovides\u003c\/em\u003e dial tone, so you plug in an analog phone, fax machine, door phone or overhead paging amplifier. An \u003cstrong\u003eFXO\u003c\/strong\u003e port \u003cem\u003etakes\u003c\/em\u003e dial tone, so you plug in an analog phone line from the phone company. Our \u003ca href=\"\/products\/crosstalk-720\"\u003eCrosstalk PBX appliances\u003c\/a\u003e are pure VoIP with no analog ports, so an ATA or gateway is how you bring analog devices or phone lines onto the system.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhone line ports (FXO)\u003c\/th\u003e\n\u003ctd\u003e4x FXO (RJ11)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhone ports (FXS)\u003c\/th\u003e\n\u003ctd\u003e1x FXS (RJ11), with power-outage lifeline to an FXO line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNetwork\u003c\/th\u003e\n\u003ctd\u003e2x 10\/100\/1000Mbps Ethernet, one with 802.3af PoE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSIP profiles\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFax\u003c\/th\u003e\n\u003ctd\u003eT.38 fax relay up to 14.4kbps, falls back to G.711 pass-through\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCodecs\u003c\/th\u003e\n\u003ctd\u003eG.711, G.723.1, G.729, G.726-32, iLBC, Opus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSecurity\u003c\/th\u003e\n\u003ctd\u003eTLS and SRTP, AES-encrypted provisioning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower\u003c\/th\u003e\n\u003ctd\u003ePoE (802.3af) or 12V\/1A DC adapter (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e190 x 100 x 28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e0.46 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e32-104°F (0-40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer part #\u003c\/th\u003e\n\u003ctd\u003eHT841\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e6947273704775\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eGood to know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNo power supply in the box. It runs on PoE (802.3af) from your switch, or a Grandstream 12V\/1A adapter.\u003c\/li\u003e\n\u003cli\u003eBoth network ports are Gigabit in bridge mode. In NAT router mode, Grandstream rates them up to 100Mbps.\u003c\/li\u003e\n\u003cli\u003eFax over VoIP works best when your SIP provider supports T.38. Test your fax machine on the line before you rely on it.\u003c\/li\u003e\n\u003cli\u003eNeed eight lines? The \u003ca href=\"\/products\/grandstream-ht881\"\u003eHT881\u003c\/a\u003e is the same gateway with eight FXO ports.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHT841 gateway\u003c\/li\u003e\n\u003cli\u003eEthernet cable\u003c\/li\u003e\n\u003cli\u003eQuick installation guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat does an FXO gateway do?\u003c\/h3\u003e\u003cp\u003eIt connects analog phone lines from the phone company to a VoIP phone system. The HT841 takes up to four lines.\u003c\/p\u003e\u003ch3\u003eDoes the HT841 come with a power supply?\u003c\/h3\u003e\u003cp\u003eNo. It runs on 802.3af PoE or a Grandstream 12V\/1A adapter, sold separately.\u003c\/p\u003e\u003ch3\u003eWhat happens to the HT841 during a power outage?\u003c\/h3\u003e\u003cp\u003eIts FXS port is hard-relayed to an FXO line, so an analog phone plugged into it can still use the copper line.\u003c\/p\u003e\u003ch2\u003eWarranty and support\u003c\/h2\u003e\u003cp\u003eGrandstream products carry the manufacturer's warranty, and we handle the claim with the distributor for you. Questions before you buy? Email \u003ca href=\"mailto:shop@crosstalksolutions.com\"\u003eshop@crosstalksolutions.com\u003c\/a\u003e or call 541-787-8870.\u003c\/p\u003e","brand":"Grandstream","offers":[{"title":"Default Title","offer_id":51158922723567,"sku":"02-133461","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/2744\/8303\/files\/grandstream-ht841-1-sq2.jpg?v=1792427663","url":"https:\/\/shop.crosstalksolutions.com\/products\/grandstream-ht841","provider":"Crosstalk Solutions Store","version":"1.0","type":"link"}