{"id":34287,"date":"2023-04-25T16:26:08","date_gmt":"2023-04-25T15:26:08","guid":{"rendered":"https:\/\/www.ispreview.co.uk\/?p=34287"},"modified":"2023-04-25T16:26:08","modified_gmt":"2023-04-25T15:26:08","slug":"vodafone-backed-ast-space-mobile-make-first-two-way-voice-call","status":"publish","type":"post","link":"https:\/\/www.ispreview.co.uk\/index.php\/2023\/04\/vodafone-backed-ast-space-mobile-make-first-two-way-voice-call.html","title":{"rendered":"Vodafone Backed AST Space Mobile Make First Two-Way Voice Call"},"content":{"rendered":"<p><a href=\"https:\/\/ast-science.com\" target=\"_blank\" rel=\"noopener\">AST SpaceMobile<\/a>, which is backed by <a class=\"shortlink shortlink-90\" title=\"vodafone\" href=\"https:\/\/www.ispreview.co.uk\/index.php\/go\/vodafoneuk\" target=\"_blank\" rel=\"nofollow noopener\">Vodafone<\/a> and several other global mobile network operators, has successfully completed the &#8220;<em>first-ever two-way voice calls<\/em>&#8221; between their prototype BlueWalker 3 <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/satellite\">satellite<\/a> in Low Earth Orbit (LEO) and a regular <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/4g\">4G<\/a> and <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/5g\">5G<\/a> capable Samsung Galaxy S22 smartphone on Earth.<!--more--><\/p>\n<p>The announcement claims that this is &#8220;<em>the first time anyone has ever achieved a direct voice connection from space to everyday cellular devices<\/em>,&#8221; although we&#8217;re not entirely sure if that&#8217;s actually true. The idea itself isn&#8217;t new. For example, the EU funded and <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/go\/britishtelecom\" rel=\"nofollow\" target=\"_blank\">BT<\/a> supported <a class=\"noshortlink\" href=\"https:\/\/www.sat5g-project.eu\/\" target=\"_blank\" rel=\"noopener noreferrer\">Satellite and Terrestrial Network for 5G<\/a> (SaT5G) project (<a href=\"https:\/\/www.ispreview.co.uk\/index.php\/2020\/10\/sat5g-integrates-commercial-5g-mobile-and-live-satellite-network.html\">here<\/a>) has already made it possible to develop solutions that can integrate a standard commercially available <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/5g\">5G<\/a> core network into a live <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/satellite\">satellite<\/a> network.<\/p>\n<p>In the past year we\u2019ve also seen various space companies, such as <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/starlink\" target=\"_blank\">Starlink<\/a> (<a href=\"https:\/\/www.ispreview.co.uk\/index.php\/2022\/08\/starlinks-leo-satellites-to-deliver-4g-and-5g-mobile-from-space.html\">here<\/a>) and <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/oneweb\" target=\"_blank\">OneWeb<\/a> (<a href=\"https:\/\/www.ispreview.co.uk\/index.php\/2022\/09\/british-satellite-firm-oneweb-to-test-5g-mobile-from-space.html\">here<\/a>), move to harness their new ultrafast broadband satellites in <strong>Low Earth Orbit<\/strong> (LEO) to deliver affordable <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/4g\">4G<\/a> (LTE) and <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/5g\">5G<\/a> mobile services &#8211; using common standards &#8211; over a wide area (global roaming), often even without consumers needing to buy a new handset.<\/p>\n<p>The latest entrant into this space (no pun intended) is AST SpaceMobile, which last year launched and deployed a 1.5 ton LEO <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/satellite\">satellite<\/a> (BlueWalker 3) &#8211; orbiting at an altitude of a little over 500km &#8211; that featured a huge 693-square-foot (64.4-square-meter) phased array antenna (<a href=\"https:\/\/www.ispreview.co.uk\/index.php\/2022\/11\/vodafone-backed-ast-space-mobile-begin-testing-4g-and-5g-satellite.html\">here<\/a>). This is perfect for sending and receiving mobile signals between the space-based platform and regular mobile handsets on the ground, as it has a Field of View (FoV) of over 300,000 square miles across the surface of the Earth.<\/p>\n<div class=\"responsive-container\"><iframe loading=\"lazy\" title=\"BlueWalker 3 Satellite&#039;s Assembly, Launch, and Deployment\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/5SHEWwYw7EE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>The first real-world trial of this system has now successfully taken place. Engineers from <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/go\/vodafoneuk\" rel=\"nofollow\" target=\"_blank\">Vodafone<\/a>, Rakuten and AT&amp;T participated in the preparation and testing of the first voice calls with BW3. The first voice call was made from the Midland, Texas (USA) area to Rakuten (Japan) over AT&amp;T spectrum using an unmodified <strong>Samsung Galaxy S22<\/strong> smartphone.<\/p>\n<p>In addition to test calls, engineers conducted initial compatibility tests on a variety of smartphones and devices. The phones successfully exchanged Subscriber Identification Module (SIM) and network information directly to BW3 &#8211; crucial for delivering broadband connectivity from space to any phone or device. Additional testing and measurements on the smartphone uplink and downlink signal strength confirm the ability to support cellular broadband speeds and <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/link\/4g\">4G<\/a> LTE \/ 5G waveforms, but no speed data was provided.<\/p>\n<blockquote class=\"bq1\"><p><strong>Abel Avellan, Chairman and Chief Executive Officer of AST SpaceMobile, said:<\/strong><\/p>\n<p>&#8220;Achieving what many once considered impossible, we have reached the most significant milestone to date in our quest to deliver global cellular broadband from space. While we take a moment to celebrate this tremendous accomplishment, we remain focused on the path ahead and pivotal next steps that get us closer to our goal of transforming the way the world connects.<\/p>\n<p>I am immensely proud of our team and our incredible partners, whose unwavering dedication and tireless efforts have brought us to this pivotal moment.&#8221;<\/p><\/blockquote>\n<p>The company plans to start launching a full constellation of 100 BlueBird satellites by the end of 2024. The first 5 of these will be similar to BW3, while the rest will be even larger. The company already has a mutual exclusivity agreement with <a href=\"https:\/\/www.ispreview.co.uk\/index.php\/go\/vodafoneuk\" rel=\"nofollow\" target=\"_blank\">Vodafone<\/a> in 24 countries, as well as various agreements and understandings with other mobile network operators across the world.<\/p>\n<p>The aim is to make this service attractive for regular consumers (we suspect this may form part of a \u2018global roaming\u2019 style add-on for your plan, at extra cost), although it&#8217;s too early to talk about costs and much may depend upon their ability to deploy enough ground stations and to secure regulatory approval for related radio spectrum across multiple countries. Not so easy.<\/p>\n<p><img decoding=\"async\" class=\"ngg-singlepic ngg-none\" style=\"padding:0px;width:100%;border-radius:4px;\" src=\"https:\/\/www.ispreview.co.uk\/wp-content\/gallery\/2023-article-illustrations\/AST-Space-Mobile-Call-to-Satellite.jpg\" alt=\"AST-Space-Mobile-Call-to-Satellite\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AST SpaceMobile, which is backed by Vodafone and several other global mobile network operators, has successfully completed the &#8220;first-ever two-way voice calls&#8221; between their prototype BlueWalker 3 satellite in Low Earth Orbit (LEO) and a regular 4G and 5G capable Samsung Galaxy S22 smartphone on Earth.<\/p>\n","protected":false},"author":1,"featured_media":32910,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[1],"tags":[61,406,60,77,477],"class_list":["post-34287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uk_isp_news","tag-4g","tag-5g","tag-mobile-broadband","tag-satellite","tag-science"],"share_on_mastodon":{"url":"","error":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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