{"id":16960,"date":"2018-09-12T08:46:06","date_gmt":"2018-09-12T06:46:06","guid":{"rendered":"https:\/\/www.savecall.de\/changeover-isdn-to-voip\/"},"modified":"2026-04-28T11:31:23","modified_gmt":"2026-04-28T09:31:23","slug":"changeover-isdn-to-voip","status":"publish","type":"post","link":"https:\/\/www.savecall.de\/en\/changeover-isdn-to-voip\/","title":{"rendered":"Changeover – ISDN to VoIP"},"content":{"rendered":"\n

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Changeover – ISDN to VoIP<\/h1>\n<\/div>\n\n\n\n

Trusted Advisor for IT & Telecommunications Sourcing<\/h3>\n<\/div>\n\n\n\n
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ISDN to VoIP – The advantages and possibilities of the changeover<\/h2>\n<\/div>\n<\/div>\n\n\n\n
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Why should companies switch to VoIP?<\/h3>\n\n\n\n
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The abolition of ISDN connections in Europe is forcing many companies to switch to VoIP. This technology not only offers a more cost-effective solution, but also numerous advantages in terms of flexibility and performance. <\/p>\n\n\n\n
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In a nutshell:<\/strong><\/p>\n\n\n\n
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Cost savings:<\/strong> VoIP reduces communication costs thanks to lower minute tariffs and SIP trunks.<\/li>\n\n\n\n
Lower operating costs:<\/strong> Reduced hardware costs and no supply bottlenecks in hardware production.<\/li>\n\n\n\n
Increased flexibility:<\/strong> Companies can use VoIP flexibly via existing Internet lines.<\/li>\n\n\n\n
Future-proof technology:<\/strong> VoIP is future-proof thanks to its IP-based structure and enables a scalable solution.<\/li>\n<\/ul>\n\n\n\n
Companies have the choice between various VoIP solutions:<\/strong><\/p>\n\n\n\n
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Virtual SIP trunk:<\/strong> Inexpensive variant that uses the Internet line for voice and data, but is insecure in the event of faults.<\/li>\n\n\n\n
Dedicated VoIP Access:<\/strong> More secure solution with an independent line that remains stable even if there are problems with the Internet connection.<\/li>\n<\/ul>\n\n\n\n
The question:<\/strong> How do you plan to switch from ISDN to VoIP in your company in order to save costs and optimize communication in the long term?<\/p>\n<\/div>\n\n\n\n
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Book a consultation<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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This topic is currently becoming an increasingly important point of change in both external and internal communication for many companies. In Europe, as has been known for some time, ISDN connections are now being abolished country by country. As a result, many corporations and companies, whether large, small or medium-sized, have no other option than to switch to VOICE OVER IP. For this change there are some essential facts that need to be considered in advance. <\/p>\n\n\n\n
What are the advantages of switching to VOIP?<\/h3>\n\n\n\n
This question can be explained in more detail in several points and provides an initial insight into how the development of the IT sector is increasingly leading us to new, higher-quality technologies.<\/p>\n\n\n\n
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VOIP traffic is sent over entire IP networks<\/li>\n\n\n\n
Lower costs and reduced operating expenses<\/li>\n\n\n\n
Lower hardware costs for TC systems<\/li>\n\n\n\n
No supply bottlenecks for hardware manufacturers<\/li>\n\n\n\n
SIP trunks from providers are cheaper in terms of monthly basic fee and purchase price<\/li>\n\n\n\n
Cheaper minute tariffs with providers<\/li>\n<\/ul>\n\n\n\n
What about the existing telephone systems?<\/h3>\n\n\n\n
Is a renewal necessary here?<\/strong><\/p>\n\n\n\n
In short, it depends on the IP PBX system. The decisive factor here is which telephone system the company is using and whether this is already Voice over IP capable. Depending on the telephone system, a software update or hardware replacement can be carried out. <\/p>\n\n\n\n
What choices do companies have for VOIP?<\/h3>\n\n\n\n
There are 2 possibilities:<\/p>\n\n\n\n
Setting up a virtually switched SIP trunk on your existing Internet line<\/strong><\/p>\n\n\n\n
Data and voice are sent within an Internet line. The bandwidth capacity of the current line should be checked in advance, as approximately 100 kbit\/s are required per call to guarantee excellent voice quality. As an example:<\/strong> For 10 employees of a company making simultaneous calls, 1 Mbit\/s can be calculated in advance. A virtual SIP trunk is an inexpensive option often chosen by companies, but it is also an insecure one, as neither data nor telephony will work in the event of faults or failures. This is why there is another option: <\/p>\n\n\n\n
A dedicated VOIP access that is established as an MPLS connection<\/strong><\/p>\n\n\n\n
Here, a separate line is set up just for telephony. This is similar to the existing ISDN connections, as the voice is used independently of the Internet connection, with the only difference being that everything is IP-based and based on a new technology. The advantage is that in the event of any problems with the data line, telephony continues to run without disruption. As there are two separate connections that are independent of each other. Many companies choose this variant as it is the more secure and better option for VOIP in terms of quality of service. These two options can also be combined. The SIP trunk is used as redundancy to the dedicated VOIP access. <\/p>\n\n\n\n
Summarized<\/h3>\n\n\n\n
The changeover from ISDN to VOIP not only saves companies money in the long term, but is also a new technology that contributes to the progress of many large, medium and small companies. We are happy to support and advise you in implementing the right IP telephony solution for your company.<\/strong><\/p>\n<\/div>\n\n\n\n
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Book a consultation<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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Why<\/h2>\n\n\n\n
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Telecom & IT sourcing. Worldwide. Carrier-independent.<\/h3>\n\n\n\n
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Selection & operation of worldwide connectivity & cloud infrastructure. Without vendor risk & unnecessary costs.<\/p>\n\n\n\n
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Min. 20% savings<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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Trusted Advisor for IT & Telecommunications Sourcing<\/h2>\n\n\n\n
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allowfullscreen><\/iframe>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embedwrapper\">\n<iframe title=\"SASE vs. SD-WAN | 03 SD-WAN erkl\u00e4rt - Savecall #sase #sdwan #explainer #telecommunications\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/P4-0tC6A7c4?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embedwrapper\">\n<iframe title=\"SASE f\u00fcr den modernen Arbeitsplatz | 02 SASE erkl\u00e4rt | Savecall #sase #modernworkplace\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/QYsTv6ddAyA?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Warum SD-WAN? | 04 SD-WAN erkl\u00e4rt - Savecall #sdwan #telecommunications #explainer\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/t3kigTY5I_8?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Cloud Priorisierung f\u00fcr Microsoft o365 oder Azure | 03 Microsoft Teams erkl\u00e4rt | Savecall #microsoft\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/lDIqZUF7_yU?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embedwrapper\">\n<iframe title=\"SD-WAN Vorteile | 06 SD-WAN erkl\u00e4rt - Savecall #sdwan #consulting #telecommunications\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Q-jacsYkT4s?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embedwrapper\">\n<iframe title=\"Wie funktioniert SD-WAN? | 05 SD-WAN erkl\u00e4rt - Savecall #sdwan #explainer #telecommunications\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/dm7t_VjRrZM?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>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embedwrapper\">\n<iframe title=\"SD-WAN Rollout, aber wie? | 07 SD-WAN erkl\u00e4rt - Savecall #sdwan #explainer #telecommunications\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/iF4iX-MjtI0?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>\n<\/div><\/figure>\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-savecall-light-grey-background-color has-background is-layout-flow wp-container-core-group-is-layout-824489b1 wp-block-group-is-layout-flow\" style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:0;padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\">\n<div class=\"wp-block-group header-plus-bottomborder logo-header is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-3b6f8b40 wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--50);padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-what-drives-you-forward-amp-what-drives\" style=\"font-style:normal;font-weight:300\">What drives you forward – & what drives<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/08\/header-logo.svg\" alt=\"\" class=\"wp-image-334\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><div class=\"acf-post-slider swiper\">\r\n <div class=\"swiper-wrapper\">\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, 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\">AI-Enabled Networks: Why Bandwidth Alone Isn’t Enough\u2014and What CIOs Really Need to Focus On<\/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\/global-connectivity-from-a-single-source\/\">\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>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">Global Connectivity from a Single Source<\/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\/nis2-telecom-infrastructure\/\">\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\">nis2-telecom-infrastructure<\/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-sd-wan-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=\"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>WAN<\/p>\r\n <\/div>\r\n\r\n <div class=\"content-container\">\r\n <h3 class=\"slide-title\">managed-sd-wan-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\/sase-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\/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\">sase-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\/why-cloud-security-is-important\/\">\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\/Cloud-Telefonie-min-1024x416.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL Cloud-Telefonanlage f\u00fcr flexible, skalierbare und standortunabh\u00e4ngige Unternehmenstelefonie\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Cloud-Telefonie-min-1024x416.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Cloud-Telefonie-min-300x122.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Cloud-Telefonie-min-768x312.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Cloud-Telefonie-min-1536x624.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Cloud-Telefonie-min-2048x832.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\">Why cloud security is important<\/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\/second-acquisition-in-twelve-months-savecall-takes-over-landline-customers-from-bluestring\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"431\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-1024x431.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Savecall company integration\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-1024x431.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-300x126.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-768x323.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-1536x647.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Firmenintegration1-small-2048x862.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\">Second acquisition in twelve months: Savecall takes over landline customers from Bluestring<\/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\/what-and-where-are-the-challenges-for-the-network-infrastructure-of-most-companies\/\">\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\">What and where are the challenges for the network infrastructure of most companies?<\/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-holding-gmbh-founded-clear-structure-strong-foundation-long-term-partnership\/\">\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\">SAVECALL Holding GmbH founded: Clear structure. Strong foundation. Long-term partnership.<\/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\/mastering-shadow-ai-with-sase-security-and-transparency-for-gen-ai-in-the-company\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"458\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-1024x458.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"SAVECALL SASE, Secure Access Service Edge ensuring safe, controlled, and reliable network access.\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-1024x458.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-300x134.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-768x343.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-1536x686.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/SASE-min-2048x915.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\">Mastering Shadow AI with SASE: Security and transparency for Gen-AI in the company<\/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\/10-advantages-of-mobile-device-management\/\">\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\/Mobile-Device-Management-min-1024x416.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Luftaufnahme einer K\u00fcstenregion als Symbolbild f\u00fcr standort\u00fcbergreifendes Mobile Device Management bei SAVECALL\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Mobile-Device-Management-min-1024x416.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Mobile-Device-Management-min-300x122.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Mobile-Device-Management-min-768x312.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Mobile-Device-Management-min-1536x624.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Mobile-Device-Management-min-2048x832.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\">10 advantages of mobile device management<\/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\/insights-into-the-requirements-of-a-modern-workplace\/\">\r\n\r\n <div class=\"image-container\">\r\n <div class=\"slide-image image\">\r\n <img decoding=\"async\" width=\"1024\" height=\"771\" src=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-1024x771.jpg?wsr\" class=\"attachment-large size-large wp-post-image\" alt=\"Modern Workplace: digitaler Arbeitsplatz f\u00fcr Unternehmen mit Cloud und Collaboration\" loading=\"lazy\" srcset=\"https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-1024x771.jpg 1024w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-300x226.jpg 300w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-768x578.jpg 768w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-1536x1157.jpg 1536w, https:\/\/www.savecall.de\/wp-content\/uploads\/2025\/09\/Modern-Workplace-small-2048x1543.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\">Insights into the requirements of a modern workplace<\/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>\r\n\r\n <div class=\"swiper-pagination\"><\/div>\r\n <div class=\"swiper-button-next\"><\/div>\r\n <div class=\"swiper-button-prev\"><\/div>\r\n<\/div>\r\n\r\n<script>\r\nwindow.addEventListener('load', function() {\r\n const sliders = document.querySelectorAll('.acf-post-slider');\r\n sliders.forEach(slider => {\r\n const nextEl = slider.querySelector('.swiper-button-next');\r\n const prevEl = slider.querySelector('.swiper-button-prev');\r\n\r\n new Swiper(slider, {\r\n slidesPerView: 1,\r\n spaceBetween: 20,\r\n loop: true,\r\n autoplay: { delay: 3000 },\r\n history: {\r\n enabled: false,\r\n },\r\n navigation: {\r\n nextEl: nextEl || null,\r\n prevEl: prevEl || null,\r\n },\r\n breakpoints: {\r\n 768: { slidesPerView: 3 },\r\n 1024: { slidesPerView: 4 },\r\n },\r\n });\r\n });\r\n});\r\n<\/script>\r\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-c8bf5bf9 wp-block-buttons-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-button more\"><a class=\"wp-block-buttonlink has-text-align-center wp-element-button\" href=\"\/blog\">More …<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull white-bg has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-bottom:0\">\n<div class=\"wp-block-group alignwide header-plus-bottomborder logo-header is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-3b6f8b40 wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--50);padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"h-book-a-free-expert-consultation\" style=\"font-style:normal;font-weight:300\">Book a free expert consultation<\/h3>\n<\/div>\n\n\n\n<div style=\"max-width: 100%; margin: 0 auto; text-align: center;\">\n <iframe src=\"https:\/\/outlook.office365.com\/book\/BookanExpertConsultation@savecall.de\/?ismsaljsauthenabled=true\" \n width=\"100%\" height=\"1500\" style=\"border:none;\" allowfullscreen>\n 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The abolition of ISDN connections in Europe is forcing many companies to switch to VoIP. This technology not only offers a more cost-effective solution, but also […]<\/p>\n","protected":false},"author":1,"featured_media":14887,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-16960","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-voice-en"],"acf":[],"yoast_head":"\n<title>Switching ISDN to VoIP - it's easy and inexpensive<\/title>\n<meta name=\"description\" content=\"ISDN is being switched off - switch to VoIP now. 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