{"id":2018,"date":"2026-02-09T12:08:14","date_gmt":"2026-02-09T12:08:14","guid":{"rendered":"https:\/\/www.grandstreamindia.co.in\/blog\/?p=2018"},"modified":"2026-02-09T12:08:28","modified_gmt":"2026-02-09T12:08:28","slug":"grandstream-introduces-outdoor-horn-speaker","status":"publish","type":"post","link":"https:\/\/www.grandstreamindia.co.in\/blog\/grandstream-introduces-outdoor-horn-speaker\/","title":{"rendered":"Grandstream Introduces Outdoor Horn Speaker to GSC Series"},"content":{"rendered":"\n<p>The new GSC3518HS is a SIP\/multicast talk-back horn speaker delivering crystal-clear HD audio through a powerful 50W high-fidelity speaker. With IP66-rated water and dust protection, it\u2019s built for reliable outdoor announcements across campuses, public spaces, offices, schools, hospitals, parks, warehouses, and more enhancing security and communication with confidence.<\/p>\n\n\n\n<p>The GSC3518HS features a powerful 50W speaker delivering up to 126dBA of sound, making it ideal for large outdoor environments. Equipped with three microphones, AI-driven noise reduction, and intelligent text-to-speech, it ensures crystal-clear communication in talk-back applications. The device supports SIP paging, multicast paging, call waiting with priority override, and more.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Key Feature:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Full-band and wide-band audio codec support including Opus &amp; G.722<\/li>\n\n\n\n<li>One 10\/100Mbps network port with PoE\/ PoE+\/PoE++ input, and one 10\/100Mbps network port with PoE\/ PoE+ output<\/li>\n\n\n\n<li>Supports differential LINE IN and LINE OUT connections<\/li>\n\n\n\n<li>IP66-rated waterproof and dustproof; includes a durable stainless steel bracket suitable for harsh outdoor environments<\/li>\n\n\n\n<li>Supports Airplay, ONVIF, RTSP\/HTTP streaming, local audio files, and mobile app playback<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Availability<\/h3>\n\n\n\n<p>The GSC3518HS is now available through Grandstream India. If you\u2019re looking for a high-performance outdoor intercom and paging solution, <a href=\"https:\/\/www.grandstreamindia.co.in\/\">Grandstream India<\/a>, your trusted distributor, brings you a powerful, all-in-one communication device built to enhance security and announcements in demanding environments.<\/p>\n\n\n\n<p>Designed for loud, clear, and reliable outdoor communication, the GSC3518HS features a high-powered 50W speaker delivering up to 126dBA output, ensuring messages are heard across expansive areas. <\/p>\n\n\n\n<p>With three built-in microphones, AI-based noise reduction, and intelligent text-to-speech, it delivers crystal-clear talk-back communication even in noisy surroundings.<\/p>\n\n\n\n<p>Supporting SIP paging, multicast paging, priority call override, and rugged outdoor durability, the GSC3518HS is ideal for campuses, factories, warehouses, transportation hubs, and public spaces. <\/p>\n\n\n\n<p>With <strong>Grandstream India<\/strong>, you get dependable deployment, simplified management, and a robust solution that keeps outdoor security and communication connected loud, clear, and reliable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Related Products<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/indoor-wifi-access-points\"><strong>Indoor Access Point<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/outdoor-wifi-access-points\"><strong>Outdoor Access Point<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/layer-2-managed-switches\"><strong>Layer 2+ Network Switches<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/aggregation-network-switches\"><strong>Aggregation Network Switches<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/layer-3-managed-switches\"><strong>Layer 3 Network Switches<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.grandstreamindia.co.in\/networking-solution\/unmanaged-network-switches\"><strong>Unmanaged Network Switches<\/strong><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The new GSC3518HS is a SIP\/multicast talk-back horn speaker delivering crystal-clear HD audio through a powerful 50W high-fidelity speaker. With IP66-rated water and dust protection, it\u2019s built for reliable outdoor announcements across campuses, public spaces, offices, schools, hospitals, parks, warehouses, and more enhancing security and communication with confidence. The GSC3518HS features a powerful 50W speaker [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2019,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[40,1],"tags":[35,37,41],"class_list":["post-2018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-communications","category-voip-networking","tag-grandstreamindia","tag-network-solutions-2","tag-unified-communications"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Grandstream Introduces Outdoor Horn Speaker to GSC Series - Grandstream India<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.grandstreamindia.co.in\/blog\/grandstream-introduces-outdoor-horn-speaker\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Grandstream Introduces Outdoor Horn Speaker to GSC Series - Grandstream India\" \/>\n<meta property=\"og:description\" content=\"The new GSC3518HS is a SIP\/multicast talk-back horn speaker delivering crystal-clear HD audio through a powerful 50W high-fidelity speaker. 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