{"id":978,"date":"2026-01-23T09:42:25","date_gmt":"2026-01-23T09:42:25","guid":{"rendered":"https:\/\/dev.ic-services.io\/?p=978"},"modified":"2026-10-21T14:12:32","modified_gmt":"2026-10-21T13:12:32","slug":"mvno-3g-abschaltung-rechtmasiges-abhoren","status":"publish","type":"post","link":"https:\/\/ic-services.io\/de\/resources\/blog\/mvno-3g-shutdown-lawful-interception\/","title":{"rendered":"3G Shutdown and IMS Voice: When MVNOs Need Their Own Lawful Interception"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Why the 3G Shutdown Matters For MVNO Lawful Interception<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">Most European operators have already switched off 3G (in Germany, for example, during 2021), and 2G networks are next: Telekom Deutschland plans to switch off 2G by 30 June 2028. For most subscribers, this means faster data and better coverage on 4G and 5G. For Mobile Virtual Network Operators (MVNOs) that run their own voice core, or that move to their own IMS as 3G (and later 2G) networks close, lawful interception has to move to the IMS as well. Light MVNOs that use their host&#8217;s VoLTE service usually remain covered by the host&#8217;s LI.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Under 3G, most light MVNOs relied on their host MNO&#8217;s circuit-switched core, so the host carried out the interception; depending on national law, the MVNO still had its own duties, such as making sure the host could implement orders. Full MVNOs that ran their own switching already operated their own LI.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">For MVNOs that take voice into their own hands, that model changes when circuit-switched voice disappears.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Von der Leitungsvermittlung zu IMS: Die technische Umstellung<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">Nach der Stilllegung von 3G werden Sprachdienste auf VoLTE (Voice over LTE) und VoNR (Voice over New Radio for 5G) umgestellt. Beide Technologien liefern Sprache als IP-Pakete \u00fcber das Datennetz und nutzen die IP Multimedia Subsystem (IMS)-Architektur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some host MNOs do not offer VoLTE to their MVNOs, and many full MVNOs choose to run their own IMS for control over features and billing. Running its own IMS gives an MVNO more control over service features, billing and customer experience. But it also means the MVNO now controls voice call signalling and, through its IMS media functions, the voice media, and with that it takes on lawful interception duties of its own.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:var(--wp--preset--spacing--70)\">When the MVNO operates the IMS core that processes voice calls, it becomes an obliged operator for that voice service. The host MNO usually keeps obligations for the radio and packet core it operates, so the two parties must agree who delivers what to avoid gaps and duplicate content.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Was MVNOs umsetzen m\u00fcssen<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">MVNOs, die auf eine eigene IMS-Infrastruktur umstellen, ben\u00f6tigen eine vollst\u00e4ndige MVNO-L\u00f6sung <a href=\"https:\/\/ic-services.io\/de\/losungen\/lawful-interception\/\">L\u00f6sung f\u00fcr die Telekommunikations\u00fcberwachung<\/a> das Folgendes umfasst:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/ic-services.io\/de\/produkte\/softwarelosungen\/system-zur-verwaltung-der-rechtmasigen-abhormasnahmen\/\">Warrant Management<\/a><\/strong><br>A system to receive, validate and track lawful interception requests from law enforcement agencies. This includes managing target identities (for IMS voice, for example the IMPU\/TEL URI, IMPI, MSISDN or IMEI), warrant timelines and authorized agency access.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>IMS-Fangstellen<\/strong><br>Integration with the IMS core to collect Intercept Related Information (IRI) and Content of Communication (CC) for VoLTE and VoNR calls. This requires interception of signalling (IRI) at the P-CSCF\/S-CSCF and of media (CC) at the media-plane functions such as the IMS-AGW, TrGW or MRF (3GPP TS 33.127).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mediation und Formatierung<\/strong><br>A <a href=\"https:\/\/ic-services.io\/de\/produkte\/softwarelosungen\/li-vermittlungsplattform\/\">Mediationsplattform<\/a> that receives the X2\/X3 output of the IMS points of interception and delivers it in the handover format required nationally, for example <a href=\"https:\/\/www.etsi.org\/deliver\/etsi_ts\/102200_102299\/10223205\/\" target=\"_blank\" rel=\"noopener\">ETSI TS 102 232-5<\/a> for IP multimedia, used with the <a href=\"https:\/\/www.etsi.org\/deliver\/etsi_ts\/102200_102299\/10223201\/03.34.01_60\/ts_10223201v033401p.pdf\" target=\"_blank\" rel=\"noopener\">TS 102 232-1<\/a> PS-PDU (as in Germany), or 3GPP TS 33.108\/33.128.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sichere \u00dcbergabe<\/strong><br>Verschl\u00fcsselte \u00dcbertragungskan\u00e4le (HI2 f\u00fcr IRI, HI3 f\u00fcr CC) zu <a href=\"https:\/\/ic-services.io\/de\/produkte\/softwarelosungen\/uberwachungseinrichtung-der-strafverfolgungsbehorden\/\">\u00dcberwachungseinrichtungen der Strafverfolgungsbeh\u00f6rden<\/a>, mit gegenseitiger Authentifizierung, Zustellbest\u00e4tigung und Protokollierung zu Pr\u00fcfzwecken.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Compliance-Berichterstattung<\/strong><br>Dokumentations- und Berichtsfunktionen zum Nachweis der Einhaltung von Vorschriften bei Audits und zur Beantwortung von Anfragen von Beh\u00f6rden zum TK\u00dc-Status.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Der Aufbau dieser Infrastruktur im eigenen Haus erfordert spezielles Fachwissen in Bezug auf 3GPP-Standards, ETSI-LI-Spezifikationen, IMS-Architektur und Schnittstellenanforderungen der Strafverfolgungsbeh\u00f6rden - Fachwissen, das die meisten MVNOs nicht im Personalbestand haben.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Drei Wege nach vorn f\u00fcr MVNOs<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">MVNOs, die sich dieser Herausforderung stellen, haben drei Hauptoptionen:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Option 1: Bauen im eigenen Haus<\/strong><br>Sie m\u00fcssen LI-Spezialisten einstellen, Vermittlungssoftware kaufen, mit IMS-Elementen integrieren und LEA-Verbindungen herstellen. Dies bietet ein H\u00f6chstma\u00df an Kontrolle, erfordert jedoch erhebliche Investitionen, laufende Betriebskosten und die F\u00e4higkeit, mit den sich entwickelnden Standards Schritt zu halten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Option 2: <a href=\"https:\/\/ic-services.io\/de\/dienstleistungen\/managed-li-operations\/\">Verwaltetes LI<\/a> Dienst<\/strong><br>Outsource the entire LI operation to a specialist provider like ICS. The provider operates the mediation platform, manages warrant lifecycles, handles LEA handover and runs day-to-day compliance on your behalf. The legal obligation stays with you. The MVNO maintains oversight but avoids building specialized infrastructure and hiring dedicated staff.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Option 3: Software-Plattform mit Unterst\u00fctzung<\/strong><br>Lizenzieren Sie die LI-Verwaltungs- und Vermittlungssoftware und betreiben Sie sie auf Ihrer eigenen Infrastruktur, mit Implementierungsunterst\u00fctzung, Schulung und laufender Beratung durch einen LI-Spezialisten. Dieser Mittelweg gibt Ihnen die Kontrolle und nutzt gleichzeitig externes Fachwissen f\u00fcr die Einrichtung und Wartung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most MVNOs find that managed services or supported software platforms offer the best balance of compliance assurance, cost control and operational simplicity. The business case for building in-house only makes sense at significant scale \u2013 typically two to three million subscribers or more in one market.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Warten Sie nicht bis zur letzten Minute<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Shutdown timelines vary by country, but the trend is clear: circuit-switched voice is ending, IMS is the future, and MVNOs that operate their own IMS need their own lawful interception solutions. Regulators expect compliance from day one of IMS operation \u2013 there&#8217;s no grace period for MVNOs to &#8220;figure it out later.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ICS hilft MVNOs bei diesem \u00dcbergang <a href=\"https:\/\/ic-services.io\/de\/losungen\/\">mit flexiblen L\u00f6sungen<\/a> die zu Ihrem Zeitplan, Ihrem Budget und Ihrer technischen Umgebung passen. Ganz gleich, ob Sie einen kompletten Managed Service, Integrationsunterst\u00fctzung f\u00fcr IMS-\u00dcberwachung oder Beratung zum Verst\u00e4ndnis Ihrer Verpflichtungen ben\u00f6tigen, wir bieten Ihnen das Fachwissen, um sicherzustellen, dass Sie bei der Weiterentwicklung Ihrer Sprachinfrastruktur konform bleiben.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die 3G-Abschaltung erzwingt einen Wandel. Stellen Sie sicher, dass die Telekommunikations\u00fcberwachung (TK\u00dc) von MVNOs nicht zu einem \u00fcberraschenden Hindernis in Ihrem IMS-Migrationsplan wird.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Wenden Sie sich an ICS, um Ihre Anforderungen an die Telekommunikations\u00fcberwachung von MVNOs zu besprechen und die richtige L\u00f6sung f\u00fcr Ihre IMS-Bereitstellung zu finden.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Further Reading on IMS Lawful Interception for MVNOs<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Weitere Informationen zu verwandten Themen finden Sie in diesen Artikeln:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/ic-services.io\/de\/?p=2173\">Die MVNO LI-Checkliste: Alles, was Sie vor dem Going Live brauchen<\/a><\/li>\n<li><a href=\"https:\/\/ic-services.io\/de\/?p=2175\">MVNO vs. MNO: Wer ist rechtlich verantwortlich f\u00fcr Telekommunikations\u00fcberwachung (TK\u00dc)?<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Externe Ressourcen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die folgenden externen Quellen bieten zus\u00e4tzlichen Kontext und offizielle Dokumentation:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.bundesnetzagentur.de\" target=\"_blank\" rel=\"noopener noreferrer\">Bundesnetzagentur (Deutsche Bundesnetzagentur)<\/a><\/li>\n<li><a href=\"https:\/\/www.etsi.org\/technologies\/lawful-interception\" target=\"_blank\" rel=\"noopener noreferrer\">ETSI-Normen f\u00fcr Telekommunikations\u00fcberwachung (TK\u00dc)<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Die 3G-Abschaltung zwingt MVNOs dazu, ihre eigene MVNO-Infrastruktur zur Telekommunikations\u00fcberwachung von IMS-basierten Sprachdiensten aufzubauen. Erfahren Sie mehr \u00fcber die technischen Anforderungen, ETSI-Standards und wie ICS MVNOs mit flexiblen, skalierbaren L\u00f6sungen bei der Einhaltung der Vorschriften unterst\u00fctzt.<\/p>","protected":false},"author":1,"featured_media":2359,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"narrow-width-container","site-content-style":"boxed","site-sidebar-style":"unboxed","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","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":"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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[29,17,26,31,21,30,32],"class_list":["post-978","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-use-cases","tag-3g-shutdown","tag-compliance","tag-etsi","tag-ims","tag-lawful-interception","tag-mvno","tag-volte"],"uagb_featured_image_src":{"full":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception.jpg",1125,750,false],"thumbnail":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception-150x150.jpg",150,150,true],"medium":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception-300x200.jpg",300,200,true],"medium_large":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception-768x512.jpg",768,512,true],"large":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception-1024x683.jpg",1024,683,true],"1536x1536":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception.jpg",1125,750,false],"2048x2048":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception.jpg",1125,750,false],"trp-custom-language-flag":["https:\/\/ic-services.io\/wp-content\/uploads\/2026\/06\/3g-shutdown-mvno-sim-card-lawful-interception-18x12.jpg",18,12,true]},"uagb_author_info":{"display_name":"ICS Team","author_link":"https:\/\/ic-services.io\/de\/author\/operations_q0xnxjbe\/"},"uagb_comment_info":1,"uagb_excerpt":"The 3G shutdown forces MVNOs to build their own MVNO lawful interception infrastructure for IMS-based voice services. Learn about the technical requirements, ETSI standards, and how ICS helps MVNOs achieve compliance with flexible, scalable solutions.","_links":{"self":[{"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/posts\/978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/comments?post=978"}],"version-history":[{"count":10,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/posts\/978\/revisions"}],"predecessor-version":[{"id":2704,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/posts\/978\/revisions\/2704"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/media\/2359"}],"wp:attachment":[{"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/media?parent=978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/categories?post=978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-services.io\/de\/wp-json\/wp\/v2\/tags?post=978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}