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Explains that the WHP device is used with home phone equipment and requires an always-installed battery for backup operation during power outages, with limitations for cordless phones. Provides guidance for emergency calls, voice-only service scope, and compatibility restrictions with other services and systems. Includes onboarding instructions, device installation basics, voicemail, number transferring, calling features, E911, troubleshooting, specifications, safety and RF information, compliance, and warranty procedures for AT&T Mobility service.",{"@graph":69,"@context":121},[70,84,104],{"@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/att-wireless-home-phone-user-guide-model-wf721-version-10/674676/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/att-wireless-home-phone-user-guide-model-wf721-version-10/674676.png","ImageObject",300,407,{"name":92,"@type":93},"Danger Angel","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What backup capability does the WHP device provide during a power outage?","Question",{"text":111,"@type":112},"The WHP device battery can be used as a backup power source. Cordless phones connected to the WHP will not operate during an outage, so a corded phone must be plugged into the WHP for backup use.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"Which services or equipment are not compatible with the WHP device?",{"text":116,"@type":112},"The WHP provides voice service only and is not compatible with data or messaging services, home security systems, fax service, medical alert/monitoring systems, credit card machines, IP/PBX phone systems, or dial-up Internet service.",{"name":118,"@type":109,"acceptedAnswer":119},"What should you do for emergency calls and E911 service?",{"text":120,"@type":112},"For emergency calls, you may have to provide your location address to the 911 operator. The guide also includes an E911 service section covering required emergency calling behavior.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},674676,1793765914,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},962090769052,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","User Guide  \nAT&T Wireless Home Phone  \nWireless Home Phone (“WHP”) device is a mobile device that may be used with home phone equipment in different locations in the U.S. WHP device requires a battery to be installed in the device at all times to operate. In the event of a power outage, the battery can be used as a backup battery. However, a cordless phone connected to the WHP device will not operate during a power outage. To use backup battery power, you must plug a corded phone into the WHP device. Corded or landline phone equipment is not provided with service. For emergency calls, you may have to provide your location address to the 911 operator. Provides voice service only. Not compatible with data or messaging services, home security systems, fax service, medical alert systems, medical monitoring systems, credit card machines, IP/PBX Phone systems, or dial-up Internet service. May not be compatible with your DVR/Satellite systems, please check with your provider. DSL customers should contact their provider before transferring a phone number to ensure uninterrupted DSL Internet service. WHP device is sold for use on theAT&T wireless network and cannot be activated on other carriers’wireless networks. If your WHP device is roaming, AT&T’s off-net usage restrictions apply.  \nService provided by AT&T Mobility. Portions © 2016 AT&T Intellectual Property. All rights reserved. AT&T is a registered trademark of AT&T Intellectual Property. All other marks contained herein are the property of their respective owners.  \nPortions Copyright © 2016 ZTE CORPORATION. All rights reserved.  \nNo part of this publication may be excerpted, reproduced, translated or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without the prior written permission of  \nZTE Corporation.  \nThe manual is published by ZTE Corporation. We reserve the right to make modifications on print errors or update specifications without prior notice. Version No.: V1 .0 Edition Time: January 2016  \nManual No.: 081704100548  \nWelcome to AT&T  \nThankyou for purchasing an AT&T Wireless Home Phone device (Model: WF721) . To get the most from your new device, check out our [videos and interactive tutorials at att.com/whphelp](videos and interactive tutorials at att.com/whphelp).  \ni  \nContents  \nGetting Started ................................................................................................................ 1  \nIn the Box ........................................................................................................................ 1  \nGetting to Know Your Device ............................................................................... 2  \nHow It Works................................................................................................................. 5  \nDevice Installation ..................................................................................................... 5  \nVoicemail ...................................................................................................................... 11  \nTransferring a Phone Number ........................................................................... 12  \nUsing Your Device ........................................................................................................ 13  \nMaking Calls ................................................................................................................ 13  \nThree-Way Calling.................................................................................................... 13  \nCall Waiting.................................................................................................................. 13  \nCall Forwarding.......................................................................................................... 14  \nHelpful Tips ................................................................................................................. 15  \nImportan","cbCaimP1Oe8vfvGh","https://ap.wps.com/l/cbCaimP1Oe8vfvGh","pdf",2646532,23,"English","# Getting Started\n## In the Box\n## Getting to Know Your Device\n## How It Works\n## Device Installation\n## Voicemail\n## Transferring a Phone Number\n## Using Your Device\n## Making Calls\n## Three-Way Calling\n## Call Waiting\n## Call Forwarding\n## Helpful Tips\n## Important Information\n## E911 Service\n## Power Outages\n## Battery\n## Device Compatibility\n## In-Home Wiring\n## Frequently Asked Questions\n## Troubleshooting\n## Specifications\n## Safety Instructions\n## Radio Frequency (RF) Energy\n## FCC Compliance\n## Warranty\n## How to Get Warranty Service\n## Other Warranty Programs\n## Notes","[{\"question\":\"What backup capability does the WHP device provide during a power outage?\",\"answer\":\"The WHP device battery can be used as a backup power source. Cordless phones connected to the WHP will not operate during an outage, so a corded phone must be plugged into the WHP for backup use.\"},{\"question\":\"Which services or equipment are not compatible with the WHP device?\",\"answer\":\"The WHP provides voice service only and is not compatible with data or messaging services, home security systems, fax service, medical alert/monitoring systems, credit card machines, IP/PBX phone systems, or dial-up Internet service.\"},{\"question\":\"What should you do for emergency calls and E911 service?\",\"answer\":\"For emergency calls, you may have to provide your location address to the 911 operator. The guide also includes an E911 service section covering required emergency calling behavior.\"}]","AT&T Wireless Home Phone - User Guide - Model WF721 - Version 1.0 | PDF",58]