{"id":17339,"date":"2026-01-19T08:00:00","date_gmt":"2026-01-19T07:00:00","guid":{"rendered":"https:\/\/www.savecall.de\/nis2-kritis-highly-available-internet-as-the-key-to-it-resilience\/"},"modified":"2026-04-24T15:45:53","modified_gmt":"2026-04-24T13:45:53","slug":"nis2-kritis-highly-available-internet-as-the-key-to-it-resilience","status":"publish","type":"post","link":"https:\/\/www.savecall.de\/en\/nis2-kritis-highly-available-internet-as-the-key-to-it-resilience\/","title":{"rendered":"NIS2 & KRITIS: Highly available internet as the key to IT resilience"},"content":{"rendered":"\n

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NIS2 & KRITIS: Highly available internet as the key to
IT resilience<\/h1>\n<\/div>\n\n\n\n

Trusted Advisor for IT & Telecommunications Sourcing<\/h3>\n<\/div>\n\n\n\n
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Why internet availability is crucial for your NIS2 resilience<\/h2>\n<\/div>\n<\/div>\n\n\n\n
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You are facing increasing demands as a result of NIS2 – not only on your security architecture, but also on the operational capability of your entire IT. For many KRITIS-related environments and essential\/important entities, one factor is taking center stage: availability<\/strong>. <\/p>\n\n\n\n
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What this means for you<\/strong><\/p>\n\n\n\n
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Even a strong security architecture does not protect if locations become “blind” in the event of line faults<\/li>\n\n\n\n
Cloud services, VPNs and control center communication can break down in the event of an incident<\/li>\n\n\n\n
Responsiveness, incident reporting and ongoing operations come under pressure<\/li>\n<\/ul>\n\n\n\n
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What this article is about<\/strong><\/p>\n\n\n\n
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This article shows how highly available Internet connections can become a practical lever for NIS2 resilience – and how SAVECALL can support you as an independent sourcing and delivery partner in design, provider selection and backup strategy.<\/p>\n\n\n\n
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Book a consultation<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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>20%
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Learn more<\/a><\/h5>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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99,99%
Availability<\/h2>\n<\/div>\n\n\n\n
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Learn more<\/a><\/h5>\n<\/div>\n<\/div>\n\n\n\n
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24\/7
Support<\/h2>\n<\/div>\n\n\n\n
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Contact<\/a><\/h5>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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NIS2 Relevancy<\/p>\n<\/div>\n<\/div>\n\n\n\n
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The NIS2 directive raises cybersecurity to a new mandatory level in many industries – not only technically, but also organizationally. For KRITIS-related environments and many “essential\/important entities”, this makes one point particularly critical: availability. After all, even the best security architecture is of little help if locations go “blind” in the event of line faults or if central cloud services, VPNs and control center communication break down. <\/p>\n\n\n\n
This article shows how highly available Internet connections function as a practical lever for NIS2 resilience – and how Savecall, as an independent sourcing and delivery partner, provides support with design, provider selection and backup strategy.<\/p>\n\n\n\n
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For whom is NIS2 typically relevant?<\/h3>\n\n\n\n
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NIS2 affects significantly more organizations than the previous NIS Directive. It is particularly common: <\/p>\n\n\n\n
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KRITIS-related operators and facilities (e.g. energy, health, transportation, water, digital infrastructure, public administration, etc.)<\/li>\n\n\n\n
Companies with high availability requirements (e.g. control centers, production and logistics networks, data center and ICT service providers, platform\/provider environments)<\/li>\n\n\n\n
Many medium-sized companies in affected sectors (often the size logic “at least 50 employees or \u2265 \u20ac10 million turnover” applies – depending on classification and exceptions)<\/li>\n<\/ul>\n\n\n\n
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Important: Whether an entity is “Essential” or “Important Entity” determines the supervision and sanction framework – it is therefore worth classifying it properly.<\/p>\n\n\n\n
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Make an appointment<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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<\/p>\n<\/div>\n<\/div>\n\n\n\n
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1<\/h2>\n<\/div>\n\n\n\n
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Why KRITIS companies are under particular pressure<\/h4>\n\n\n\n
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ICRITIS processes are socially and operationally critical. In practice, it is often not only cyber attacks but also “banal” outages (construction work, excavators, PoP disruption, power issues in the carrier environment) that trigger security and operational risks: <\/p>\n\n\n\n
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Standstill of control center\/OT communication<\/li>\n\n\n\n
Interrupted cloud and VPN connections (identity, SIEM, remote access, ticketing)<\/li>\n\n\n\n
Delayed response to security incidents (because telemetry\/logging no longer flows cleanly)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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2<\/h2>\n<\/div>\n\n\n\n
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What NIS2 requires in practice – and why Internet resilience is part of it<\/h4>\n\n\n\n
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NIS2 requires, among other things, appropriate technical and organizational measures as well as rapid incident reporting. These are typical: <\/p>\n\n\n\n
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Early warning “where possible” within 24 hours<\/li>\n\n\n\n
Incident notification within 72 hours (with reliable information)<\/li>\n<\/ul>\n\n\n\n
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Key message: Availability is not a “nice-to-have”, but directly influences reporting obligations, responsiveness and damage limitation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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3<\/h2>\n<\/div>\n\n\n\n
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Backup Internet is not the same as highly available Internet<\/h4>\n\n\n\n
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Many setups call themselves “redundant”, but in everyday life they are only emergency operations. Typical weak points of classic backup lines: <\/p>\n\n\n\n
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Switchover time: Failover only after failure detection – applications “notice” this<\/li>\n\n\n\n
IP\/routing changes: breaking VPNs, whitelists, cloud policies, control center tunnels or partner connections<\/li>\n\n\n\n
Degraded performance: Backup is often narrowband or split<\/li>\n\n\n\n
Costs without benefits: The second line lies idle during normal operation<\/li>\n<\/ul>\n\n\n\n
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The alternative is an approach in which several connections are used permanently (active-active): Load balancing, automatic interception of failures and – depending on the design – a stable egress IP for critical applications.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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Practical blueprints: These Internet backup variants really work<\/h2>\n<\/div>\n\n\n\n
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Depending on the location, sector, risk and budget, the following variants are often combined:<\/p>\n\n\n\n
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Variant A: Two wired Internet accesses (carrier & route diversity)<\/h4>\n\n\n\n
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Two different carriers \/ last mile<\/li>\n\n\n\n
Ideally separate building entry\/route\/PoP dependencies<\/li>\n\n\n\n
The “gold standard” for site resilience in many KRITIS environments<\/li>\n<\/ul>\n\n\n\n
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Variant B: DIA + Business Broadband as economic redundancy<\/h4>\n\n\n\n
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Strong primary line (DIA\/fiber optic)<\/li>\n\n\n\n
Second line cost-efficient (business broadband)<\/li>\n\n\n\n
Useful if bandwidth in failover does not have to be 1:1 identical<\/li>\n<\/ul>\n\n\n\n
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Variant C: Wired + Mobile communications (4G\/5G) as “third air”<\/h4>\n\n\n\n
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Mobile communications as additional failure protection (e.g. in the event of construction\/route problems)<\/li>\n\n\n\n
Particularly suitable for signaling paths, emergency operation, out-of-band accesses<\/li>\n<\/ul>\n\n\n\n
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Variant D: Active-Active Multi-Access (parallel operation instead of “cold start backup”)<\/h4>\n\n\n\n
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Both\/multiple lines run simultaneously<\/li>\n\n\n\n
Automatic compensation in the event of faults (without “hard cut”)<\/li>\n\n\n\n
Performance advantage in normal operation through load distribution<\/li>\n<\/ul>\n\n\n\n
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Variant E: Stable IP & clean failover for VPN\/cloud\/partner (routing design)<\/h4>\n\n\n\n
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Goal: no application crashes due to changing sender IP<\/li>\n\n\n\n
Depending on the setup: Multi-homing\/BGP options or other egress concepts<\/li>\n\n\n\n
Relevant for: Site-to-site VPN, cloud policies, partner whitelists, OT tunnels<\/li>\n<\/ul>\n\n\n\n
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Note: The appropriate variant depends heavily on which applications need to remain stable (control center, OT, cloud ERP, VoIP), which RTO\/RPO targets apply and how diverse the local infrastructure is actually available.<\/p>\n\n\n\n
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Make an appointment<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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How SAVECALL provides provider-independent support for Internet & backup<\/h2>\n<\/div>\n\n\n\n
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SAVECALL does not start with “hardware”, but with operability and risk – and organizes the right solution via the provider ecosystem.<\/p>\n\n\n\n
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Typical SAVECALL procedure<\/h4>\n\n\n\n
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As-is analysis & risk check: single points of failure (carrier, route, building, IP dependencies)<\/li>\n\n\n\n
Variant design: active-passive vs. active-active, bandwidth and IP strategy, SLA requirements<\/li>\n\n\n\n
Provider-independent market comparison: suitable carrier\/access options per location (incl. alternatives to the last mile)<\/li>\n\n\n\n
Procurement & coordination: requesting quotations, ordering, scheduling and construction coordination, escalation<\/li>\n\n\n\n
Operational support: documentation, provider handling, structured fault clearance\/incident support (according to agreed model)<\/li>\n<\/ul>\n\n\n\n
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In short: You get a resilient backup strategy for the Internet – and SAVECALL ensures that it is actually available and operable at your location.<\/p>\n<\/div>\n<\/div>\n\n\n\n
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$\"Alpine$ <\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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What does this mean for NIS2 compliance – in concrete terms? <\/h3>\n\n\n\n
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Fewer breakdowns \u2192 fewer reportable malfunctions<\/li>\n\n\n\n
Faster response times because security monitoring\/remote access remains accessible<\/li>\n\n\n\n
Better audit evidence: clean design, documented redundancy, defined failover mechanisms<\/li>\n\n\n\n
More stable communication with partners\/authorities\/service providers thanks to predictable connectivity<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
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Conclusion<\/h3>\n\n\n\n
NIS2 is forcing many organizations to make resilience measurable.
High-availability Internet is one of the most pragmatic levers here – not as a “second line in the closet”, but as a well thought-out redundancy design that takes applications, IP dependencies and operating processes into account.<\/p>\n\n\n\n
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Book a consultation<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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Q&A: Frequently asked questions<\/h2>\n<\/div>\n<\/div>\n\n\n\n
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$\"Climbing$ <\/figure>\n<\/div>\n\n\n\n
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Do we really need two carriers – or is “a second line” enough?<\/strong><\/p>\n\n\n\n
Two lines on the same carrier can still be connected to the same PoP\/backbone\/route point. Diversity counts for real resilience. <\/p>\n\n\n\n
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Does the backup have to have the same bandwidth?<\/strong><\/p>\n\n\n\n
Not mandatory. The decisive factor is which applications must continue to run in the event of a fault (control center is not the same as normal office surfing). <\/p>\n\n\n\n
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Why is a fixed IP so important?<\/strong><\/p>\n\n\n\n
Many security and partner setups are based on IP whitelisting\/VPN identities. IP changes cause avoidable outages – especially in the event of an incident. <\/p>\n\n\n\n
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Active-Active sounds expensive – is it worth it?<\/strong><\/p>\n\n\n\n
Often yes, because the second line is used in normal operation (performance) and failover is less “noticeable” – instead of expensive “dead” backup capacity.<\/p>\n\n\n\n
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How does this fit in with SASE\/SD-WAN?<\/strong><\/p>\n\n\n\n
Very good: SASE\/SD-WAN can intelligently control policies and failover – but the basis remains a cleanly designed, diverse Internet carpet pad.<\/p>\n\n\n\n
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height=\"523\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1024x523.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"WAN L\u00f6sungen f\u00fcr moderne Unternehmensnetzwerke\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1024x523.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-300x153.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-768x392.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1536x785.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-2048x1046.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Internet<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">SD-WAN and SASE: 10 Questions to Ask Your Managed Service Provider<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/savecall-wins-the-best-practice-award-2026\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"544\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-1024x544.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Awards, ausgezeichnete Leistungen in IT, Kommunikation und Cyber Security.\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-1024x544.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-300x159.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-768x408.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-1536x815.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Awards-min-2048x1087.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Internet<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">SAVECALL Wins the Best Practice Award 2026<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/dual-resilient-dia-ai-workflows\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Business Internet mit Glasfaser, Standleitung, Richtfunk und SDSL f\u00fcr schnelle Unternehmenskonnektivit\u00e4t\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Internet<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Dual-Resilient DIA for AI Networks<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/5-warning-signs-of-an-outdated-connectivity-model\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"523\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1024x523.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"WAN L\u00f6sungen f\u00fcr moderne Unternehmensnetzwerke\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1024x523.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-300x153.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-768x392.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-1536x785.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/1370X1-2048x1046.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>The company<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">5 Warning Signs of an Outdated Connectivity Model<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/savecall-at-leat-con-2026\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1000\" height=\"668\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Nikolaus-von-Johnston-Portraet-2-small-min.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Nikolaus-von-Johnston-Portraet-2-small-min.jpg 1000w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Nikolaus-von-Johnston-Portraet-2-small-min-300x200.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Nikolaus-von-Johnston-Portraet-2-small-min-768x513.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/> <\/div>\r\n <p>The company<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Savecall at leat con 2026<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/savecall-at-the-2026-colt-charity-bike-ride\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"523\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Das Bild visualisiert Wide Area Networks (WAN)\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-300x153.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-768x392.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1536x785.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-2048x1046.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Partner<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">SAVECALL at the 2026 Colt Charity Bike Ride<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/globale-internet-beschaffung-warum-inhouse-sourcing-oft-teurer-wird-als-gedacht\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"523\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Das Bild visualisiert Wide Area Networks (WAN)\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-300x153.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-768x392.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1536x785.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-2048x1046.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Globale Internet-Beschaffung: Warum Inhouse-Sourcing oft teurer wird als gedacht<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/managed-security-service-provider-germany\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-1024x574.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL IT-Security mit Cyber Defense, SASE, Dedicated Cloud Access und Hosting f\u00fcr umfassenden Unternehmensschutz\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-1024x574.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-300x168.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-768x430.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-1536x861.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Security-min-2048x1148.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Security<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">managed-security-service-provider-germany<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/wan-costs-site-connectivity\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Satellite orbiting Earth symbolizing global voice communication and seamless enterprise connectivity\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">wan-costs-site-connectivity<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/wan-monitoring-visibility-operation\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Satellite orbiting Earth symbolizing global voice communication and seamless enterprise connectivity\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">wan-monitoring-visibility-operation<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/wan-sla-mttr-worauf-achten\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Satellite orbiting Earth symbolizing global voice communication and seamless enterprise connectivity\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">wan-sla-mttr-what-counts<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/cloud-phone-system-provider-comparison\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Satellite orbiting Earth symbolizing global voice communication and seamless enterprise connectivity\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Voice-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Voice<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">cloud-phone-system-provider-comparison<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/business-mobile-provider-comparison-2026\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"416\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-1024x416.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Mobilfunk Tarifvergleich, transparente \u00dcbersicht und Optimierung von Gesch\u00e4ftsmobilfunkvertr\u00e4gen f\u00fcr maximale Kosteneffizienz.\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-1024x416.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-300x122.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-768x312.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-1536x624.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Tarifvergleich-min-2048x832.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Mobile radio management<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Business Mobile Provider Comparison 2026<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/business-internet-connection-which-provider-fits\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"469\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1024x469.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Business Internet mit Glasfaser, Standleitung, Richtfunk und SDSL f\u00fcr schnelle Unternehmenskonnektivit\u00e4t\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1024x469.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-300x137.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-768x352.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-1536x704.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Internet-min-2048x938.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Internet<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Business Internet Connection Which Provider Fits<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/why-vendor-sprawl-destroys-agility\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Consulting1-small-min-1024x683.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Consulting: professionelle Beratung f\u00fcr WAN, Vertragsmanagement, Ausschreibungen & Rechenzentrumsumz\u00fcge.\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Consulting1-small-min-1024x683.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Consulting1-small-min-300x200.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Consulting1-small-min-768x512.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Consulting1-small-min.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <\/div>\r\n <p>Consulting<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">why-vendor-sprawl-destroys-agility<\/h3>\r\n <div class=\"content-more-container\">\r\n <h3 class=\"slide-more\">Learn moreLearn more<\/h3>\r\n <\/div>\r\n <\/div>\r\n\r\n <\/a>\r\n <\/div>\r\n <div class=\"swiper-slide\">\r\n <a href=\"https:\/\/www.savecall.de\/en\/ki-faehige-netzwerke-warum-bandbreite-nicht-reicht-und-worauf-cios-wirklich-achten-muessen\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"523\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Das Bild visualisiert Wide Area Networks (WAN)\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1024x523.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-300x153.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-768x392.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/COMPLE1-scaled-1536x785.jpg 1536w, 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