{"product_id":"grandstream-ht881","title":"Grandstream HT881 8-Port FXO Gateway","description":"\u003cp\u003eThe Grandstream HT881 is an FXO gateway for up to eight analog phone lines. It brings the copper lines from the phone company into your VoIP phone system, which is useful when you're moving in stages or keeping a few lines for a while.\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\u003e8x 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\u003eHT881\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e6947273704782\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\u003eOnly need four lines? The \u003ca href=\"\/products\/grandstream-ht841\"\u003eHT841\u003c\/a\u003e is the same gateway with four FXO ports.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHT881 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\u003eHow many phone lines can the HT881 connect?\u003c\/h3\u003e\u003cp\u003eEight analog phone lines, on eight FXO ports. It also has one FXS port for an analog phone or fax machine.\u003c\/p\u003e\u003ch3\u003eDoes the HT881 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\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":51158923018479,"sku":"02-133462","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/2744\/8303\/files\/grandstream-ht881-1-sq.jpg?v=1792427210","url":"https:\/\/shop.crosstalksolutions.com\/products\/grandstream-ht881","provider":"Crosstalk Solutions Store","version":"1.0","type":"link"}