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Covers supported PBX versions and CODEC types, important usage notes, and trademark information. Includes FCC and Canadian regulatory notices, hearing-aid compatibility guidance for T-coil usage, and caution about unauthorized modifications. Provides accessory information, included and optional parts, and key location descriptions with button functions such as messaging, call handling, and programming.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ip-proprietary-telephone-quick-reference-guide-model-kx-nt551kx-nt553kx-nt556/664499/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ip-proprietary-telephone-quick-reference-guide-model-kx-nt551kx-nt553kx-nt556/664499.png","ImageObject",300,407,{"name":92,"@type":93},"asda1da","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Which PBX versions and CODEC types does the guide mention as supported?","Question",{"text":112,"@type":113},"The guide lists specific Panasonic PBX software versions (KX-NS1000, KX-NCP500/KX-NCP1000, KX-TDE100/KX-TDE200, KX-TDE600) and CODECs including G.722, G.711, and G.729A.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What hearing-aid related compatibility information is included?",{"text":117,"@type":113},"The equipment is described as hearing-aid compatible, notes possible noise when used with some hearing aids, and recommends using the speakerphone option if noise occurs. It also states that T-coil compatible hearing aids receive reduced noise and interference when using the indicated logo.",{"name":119,"@type":110,"acceptedAnswer":120},"What accessories come with these phone models, and what optional accessories are listed?",{"text":121,"@type":113},"Included accessories include handset, handset cord, and stand (with model variations shown in the tables). Optional accessories listed include an AC adaptor, wall mount kit, and an add-on 48 key module for certain models.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},664499,1793257898,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":26},3985747861852,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Quick Reference Guide  \nIP Proprietary Telephone  \nModel No. KX-NT551/KX-NT553 KX-NT556  \nThank you for purchasing an IP Proprietary Telephone (IP-PT) . Please read this manual carefully before using this product and save this manual for future use. For more details, please refer to the manuals of the PBX.  \nThis product supports the following PBX versions and CODEC types:  \nR KX-NS1000: PCMPR Software File Version 3.0000 or later  \nR KX-NCP500/KX-NCP1000: PBMPR Software File Version 8.0000 or later R KX-TDE100/KX-TDE200: PMMPR Software File Version 8.0000 or later R KX-TDE600: PGMPR Software File Version 8.0000 or later  \nR CODEC: G.722, G.711, G.729A  \nNote  \nR In this manual, the suffix of each model number is omitted unless necessary. R The illustrations may differ from the appearance of the actual product.  \nTrademarks  \nR Plantronics is a trademark or registered trademark of Plantronics, Inc.  \nR All other trademarks identified herein are the property of their respective owners.  \nDocument Version: 2014-01  \nImportant Information  \nFCC and Other Information  \nThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: R Reorient or relocate the receiving antenna.  \nR Increase the separation between the equipment and receiver.  \nR Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  \nR Consult the dealer or an experienced radio/TV technician for help.  \nCAUTION  \nAny changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this device.  \nFCC Declaration of Conformity  \nTrade Name: Panasonic  \nModel Number: KX-NT551/KX-NT553/KX-NT556  \nResponsible Party:  \nPanasonic Corporation of North America Two Riverfront Plaza  \nNewark, NJ 07102–5490 U.S.A.  \nTelephone No.: 1-800-211-PANA (7262)  \nWHEN PROGRAMMING EMERGENCY NUMBERS AND (OR) MAKING TEST CALLS TO EMERGENCY NUMBERS:  \na. Remain on the line and briefly explain to the dispatcher the reason for the call.  \nb. Perform such activities in the off-peak hours, such as early morning or late evenings.  \nThis equipment is hearing aid compatible.  \nWhen you hold the phone to your ear, noise might be heard in your Hearing Aid. Some Hearing Aids are not adequately shielded from external RF (radio frequency) energy. If noise occurs, use the speakerphone option (if applicable) when using this phone. Consult with your audiologist or Hearing Aid manufacturer about the availability of Hearing Aids which provide adequate shielding to RF energy commonly emitted by digital devices.  \nFor users in Canada only  \nR This Class B digital apparatus complies with Canadian ICES-003 .  \nR This product meets the applicable Industry Canada technical specifications.  \nCompliance with TIA-1083 standard:  \n\n| Compatible with Hearing Aid T-Coil |\n| --- |\n| |\n| TIA-1083 |\n\nTelephone handsets identified with this logo have reduced noise and interference when used with T-Coil equipped hearing aids and cochlear implants.  \nAccessory Information  \nIncluded Accessories  \n\n| Handset (1) | Handset Cord (1) | Stand (1) |  |\n| --- | --- | --- | --- |\n| | | KX-NT551\u003Cbr>| KX-NT553/\u003Cbr>KX-NT556\u003Cbr>|\n\nNote  \nFor extra orders for the accessories, call toll-free: 1-800-332-5368. (For","cbCaik7Nixy33ywP","https://ap.wps.com/l/cbCaik7Nixy33ywP","pdf",871371,24,"English","# Quick Reference Guide\n## Important Information\n## FCC and Other Information\n## Accessory Information\n## Location of Controls","[{\"question\":\"Which PBX versions and CODEC types does the guide mention as supported?\",\"answer\":\"The guide lists specific Panasonic PBX software versions (KX-NS1000, KX-NCP500/KX-NCP1000, KX-TDE100/KX-TDE200, KX-TDE600) and CODECs including G.722, G.711, and G.729A.\"},{\"question\":\"What hearing-aid related compatibility information is included?\",\"answer\":\"The equipment is described as hearing-aid compatible, notes possible noise when used with some hearing aids, and recommends using the speakerphone option if noise occurs. It also states that T-coil compatible hearing aids receive reduced noise and interference when using the indicated logo.\"},{\"question\":\"What accessories come with these phone models, and what optional accessories are listed?\",\"answer\":\"Included accessories include handset, handset cord, and stand (with model variations shown in the tables). Optional accessories listed include an AC adaptor, wall mount kit, and an add-on 48 key module for certain models.\"}]","IP Proprietary Telephone - Quick Reference Guide - Model KX-NT551/KX-NT553/KX-NT556 | PDF"]