{"id":63257,"date":"2025-11-20T10:30:00","date_gmt":"2025-11-20T08:30:00","guid":{"rendered":"https:\/\/kavkom.com\/useful-information\/complete-guide-how-to-choose-the-best-in-house-telephone-for-your-company\/"},"modified":"2026-04-11T22:11:34","modified_gmt":"2026-04-11T19:11:34","slug":"complete-guide-how-to-choose-the-best-in-house-telephone-for-your-company","status":"publish","type":"post","link":"https:\/\/kavkom.com\/en\/articles\/telephony\/complete-guide-how-to-choose-the-best-in-house-telephone-for-your-company\/","title":{"rendered":"Complete guide: How to choose the best in-house telephone for your company"},"content":{"rendered":"\n<p>This is precisely where the <strong>in-house telephone<\/strong> comes in. It helps to <strong>streamline exchanges between colleagues<\/strong>, better <strong>manage incoming calls<\/strong> and structure customer relations. In this guide, you&#8217;ll <strong>find out how these systems work<\/strong>, what their variants are, and above all how to<strong> choose the solution that really suits your needs<\/strong>.  <\/p>\n\n<h3 class=\"wp-block-heading\"><strong>Points to remember :<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>An in-house telephone helps to <strong>streamline communication between employees <\/strong>and <strong>reduce the costs associated with day-to-day exchanges<\/strong>.<\/li>\n\n\n\n<li>The three main models (PBX, IPBX and cloud telephony) each have their own <strong>advantages and limitations, and it&#8217;s worth comparing them according to your needs<\/strong>.<\/li>\n\n\n\n<li>Cloud telephony <strong>stands out for its mobility<\/strong>, <strong>ease of deployment<\/strong> and <strong>ability to grow rapidly with your business<\/strong>.<\/li>\n\n\n\n<li>The choice of a telephony system <strong>depends on concrete criteria<\/strong>: number of users, budget, reliability of Internet connection and desired level of integration.<\/li>\n\n\n\n<li>Making a successful transition to a modern system involves preparation, team training and performance monitoring to take full advantage of the new functionalities.<\/li>\n<\/ul>\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/app.kavkom.com\/registration?language=french&amp;utm_campaign=agemia&amp;utm_source=blog&amp;utm_medium=t%C3%A9l%C3%A9phone+interne+entreprise\"><img decoding=\"async\" src=\"https:\/\/neuroncdn.com\/cdn-0001\/3267cb85b6c1bb090ac62a613549012c805308ffca7169abb00d7ee5fc515608?ts=1760094310\" alt=\"\"\/><\/a><\/figure>\n\n<style>\/* \u2500\u2500 Reset scop\u00e9 \u2500\u2500 *\/\n    .blog-cta-custom-basic-wrapper,\n    .blog-cta-custom-basic-wrapper *,\n    .blog-cta-custom-basic-wrapper *::before,\n    .blog-cta-custom-basic-wrapper *::after {\n      box-sizing: border-box;\n      margin: 0;\n      padding: 0;\n    }\n    \/* 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\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    @media (max-width: 767px) {\n      .blog-cta-custom-basic-wrapper {\n        flex-direction: column;\n        padding: 16px 16px 0;\n        gap: 12px;\n      }\n      .blog-cta-custom-basic-left {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-btn {\n        width: 100%;\n        text-align: center;\n        padding: 12px 18px;\n        font-size: 14px;\n      }\n      .blog-cta-custom-basic-right {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-visual {\n        border-radius: 0;\n      }\n    }\n  <\/style><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     KAVKOM BLOG CTA \u2014 Type 2 horizontal\n     Copier ce bloc dans vos articles\n     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><div class=\"blog-cta-custom-basic-wrapper\"><!-- \u2500\u2500 Colonne gauche \u2500\u2500 --><div class=\"blog-cta-custom-basic-left\"><img decoding=\"async\" class=\"blog-cta-custom-basic-logo\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2023\/09\/Kavkom-logo-white-footer.webp\" alt=\"Logo Kavkom\"\/><!-- \u270f\ufe0f MODIFIER le texte d'accroche --><p class=\"blog-cta-custom-basic-headline\">Boostez la productivit\u00e9 de vos \u00e9quipe commerciales gr\u00e2ce \u00e0 Kavkom, le logiciel de <strong>t\u00e9l\u00e9phonie d&#8217;entreprise<\/strong> 100% cloud. <\/p><!-- \u270f\ufe0f MODIFIER href et texte du bouton --><a href=\"https:\/\/kavkom.com\/en\/free-demo-new\/?utm_campaign=agemia&#038;utm_source=blog&#038;utm_medium=new%20cta\" class=\"blog-cta-custom-basic-btn\">Planifier une d\u00e9mo<\/a><\/div><!-- \u2500\u2500 Colonne droite : visuel complet \u2500\u2500 --><div class=\"blog-cta-custom-basic-right\"><img decoding=\"async\" class=\"blog-cta-custom-basic-visual\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2026\/04\/CTA-bas-de-page-1920-x-850-px.png\" alt=\"Aper\u00e7u Kavkom\"\/><\/div><\/div>\n\n<h2 class=\"wp-block-heading\">What is a company telephone?<\/h2>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/neuroncdn.com\/cdn-0001\/9f663dd6051f60442d4edeb1003c44cb00b1316c85ed46fd637c0805676eb2d3?ts=1760028486\" alt=\"-Illustration =&amp;gt; Purpose: to explain the difference between internal and external calls. Description: two bubbles side by side. Left: icon of a telephone connected directly to another extension, short arrow, &quot;internal call&quot; label. Right: phone connected to a &quot;public network&quot; box, then to another extension, &quot;external call&quot; label.   \"\/><\/figure>\n\n<p>An <strong>internal telephone network<\/strong> enables employees to<strong> call each other free of charge, without going through an external operator<\/strong>. These are also known as<strong>internal telephone calls<\/strong>. In a call center or <a href=\"https:\/\/kavkom.com\/en\/articles\/telephony\/complete-guide-to-migrating-to-an-enterprise-cloud-telephony-solution-for-smbs-5-steps\/\">SME<\/a>, this <strong>avoids saturating customer lines<\/strong>.  <\/p>\n\n<p>The difference is simple: an <strong>internal call<\/strong> remains on the company&#8217;s system, while an external call <strong>transits the public network<\/strong>. This distinction is <strong>not just a technical<\/strong> one. It has a direct impact on the fluidity of exchanges and on bills.  <\/p>\n\n<p><strong>In a nutshell<\/strong><br\/>An internal company telephone is first and foremost a means of <strong>simplifying <a href=\"https:\/\/kavkom.com\/telephonie-dentreprise\/\">day-to-day communication<\/a><\/strong> and <strong>reducing the costs associated with exchanges between colleagues<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\">The different types of internal telephone systems<\/h2>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/neuroncdn.com\/cdn-0001\/7e038b5fb39f98cb44c6c5418861fcddecdcd771ebbbbad4fc174241d86dc369?ts=1760028841\" alt=\"Illustration =&amp;gt; A three-column diagram. Column 1 with a box icon + telephone (PBX). Column 2 with server icon + computer (IPBX). Column 3 with a cloud + smartphone and PC.   \"\/><\/figure>\n\n<p>Not all companies have the same needs. So there are several technologies, which still coexist today. Each has its advantages, its limitations, and above all a different cost of entry.  <\/p>\n\n<h3 class=\"wp-block-heading\">Traditional switchboard (PBX, PABX, RTC)<\/h3>\n\n<p>The classic <strong>switchboard<\/strong> operates via the switched telephone network (PSTN). The company&#8217;s <strong>landline telephones<\/strong> are connected to a central box (the PBX), physically installed on the premises. <\/p>\n\n<p>The benefits? Total <strong>autonomy<\/strong>: your internal calls are free, and the system remains independent of the Internet. But the drawbacks are considerable: expensive hardware, regular maintenance, lack of mobility. At a time when many teams are working remotely, the PBX is finding it increasingly difficult to meet expectations.   <\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>According to ARCEP, the historic copper network (PSTN), used for fixed telephony and ADSL, <a href=\"https:\/\/www.arcep.fr\/la-regulation\/grands-dossiers-reseaux-fixes\/la-fermeture-du-reseau-cuivre.html\" target=\"_blank\" rel=\"noopener\">will be phased out between 2023 and 2030<\/a>. Fiber optics will become the reference infrastructure, offering higher performance, lower maintenance costs and essential for new uses (telecommuting, teleconsultations, VoIP). <\/p>\n<\/blockquote>\n\n<h3 class=\"wp-block-heading\">IPBX standard (VoIP and Internet protocol)<\/h3>\n\n<p>The<strong>IPBX<\/strong> ushers in the era of <a href=\"https:\/\/kavkom.com\/en\/articles\/telephony\/ip-telephony-definition-and-operation\/\">IP telephony<\/a>. <strong>Calls are made via the Internet Protocol<\/strong><strong>(VoIP &#8211; Voice over Internet Protocol<\/strong>). As a result, there&#8217;s no need for complex wiring &#8211; all you need is a stable <strong>Internet connection<\/strong>. <\/p>\n\n<p><strong>Advanced features<\/strong> <strong>make all the difference<\/strong>: centralized voicemail, call transfers, real-time supervision. <strong>Calls<\/strong> can <strong>be made<\/strong> from a computer, a softphone or even a cell phone connected to the network. <\/p>\n\n<p>The IPBX is often <strong>seen as a good compromise<\/strong>: it modernizes communications, while keeping the <strong>system hosted on the company&#8217;s premises<\/strong>. But it&#8217;s still technical to deploy, and sometimes requires a <strong>specialized service provider for installation and maintenance<\/strong>. <\/p>\n\n<p><strong>Example<\/strong><br\/>An SME with 40 employees can use an IPBX to manage its <strong>communications<\/strong>. Each workstation is <strong>connected to the company&#8217;s Internet network<\/strong>. Employees have access to a unified messaging system, and can be reached on their internal number wherever they are in the office.  <\/p>\n\n<h3 class=\"wp-block-heading\">Cloud telephony (Centrex, SaaS solutions)<\/h3>\n\n<p>The latest model is also the most recent: <strong>telephony in the cloud<\/strong>. Here, everything is hosted remotely by a<strong> specialized provider<\/strong>. Also known as <strong>Centrex<\/strong> or SaaS solutions.  <\/p>\n\n<p>Its strengths? <strong>Mobility<\/strong> (you can receive calls from a PC, tablet or cell phone), <strong>scalability<\/strong> (you can add or remove a line in just a few clicks) and <strong>a significant reduction in communication costs<\/strong>. There&#8217;s no box to buy, no cables to run: <strong>everything goes via the Internet<\/strong>.  <\/p>\n\n<p>This is the <strong>preferred solution<\/strong> for growing companies, call centers and multi-site structures. However, it is <strong>totally dependent on the quality of your<\/strong> <strong>Internet connection<\/strong>. <\/p>\n\n<p><strong>Simplified comparison<\/strong><\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>System type<\/th><th>Benefits<\/th><th>Limits<\/th><\/tr><\/thead><tbody><tr><td><strong>PBX (PSTN)<\/strong><\/td><td>Autonomy, free internal calls<\/td><td>High costs, no mobility<\/td><\/tr><tr><td><strong>IPBX (VoIP)<\/strong><\/td><td>Advanced functions, integration possible<\/td><td>Technical installation, IT-dependent<\/td><\/tr><tr><td><strong>Cloud (Centrex)<\/strong><\/td><td>Total mobility, scalable, no hardware required<\/td><td>Internet addiction<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Comparison of in-house telephony solutions<\/h2>\n\n<p>A direct comparison is the best way to decide. Here&#8217;s an <strong>overview of the three systems<\/strong>, according to key criteria. <\/p>\n\n<p><strong>Costs<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>PBX: heavy initial investment, regular maintenance.<\/li>\n\n\n\n<li>IPBX: intermediate costs, sometimes requires a dedicated server.<\/li>\n\n\n\n<li>Cloud: monthly subscription, no hardware, predictable costs.<\/li>\n<\/ul>\n\n<p><strong>Ease of deployment<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>PBX: complex installation, long lead times.<\/li>\n\n\n\n<li>IPBX: technical configuration, requires IT skills.<\/li>\n\n\n\n<li>Cloud: activation in minutes, online administration.<\/li>\n<\/ul>\n\n<p><strong>Advanced features<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>PBX: limited (transfer, hold).<\/li>\n\n\n\n<li>IPBX: messaging, supervision, partial integrations.<\/li>\n\n\n\n<li>Cloud: all modern functions (recording, statistics, <a href=\"https:\/\/kavkom.com\/en\/integrations\/\">CRM integration<\/a>).<\/li>\n<\/ul>\n\n<p><strong>Scalability<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>PBX: not very flexible.<\/li>\n\n\n\n<li>IPBX: possible but costly.<\/li>\n\n\n\n<li>Cloud: instant adjustment of the number of lines.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">How do you choose the right phone system for your business?<\/h2>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/neuroncdn.com\/cdn-0001\/134cfe55dba8f69394bb04b76a205c68dde050908b897ed453d853fbd6947bed?ts=1760031282\" alt=\"criteria for choosing your telephony system\"\/><\/figure>\n\n<p><strong>Each company has its own particularities<\/strong>. A law firm doesn&#8217;t have the same needs as a call center with 50 agents. So the first step is to <strong>assess your real needs<\/strong>.  <\/p>\n\n<p>Ask yourself the right questions: how many employees need to <strong>receive<\/strong> <strong>internal or external<\/strong> <strong>calls<\/strong>? What is the volume of<strong>incoming and outgoing calls<\/strong>?  Do your teams work <a href=\"https:\/\/kavkom.com\/en\/usages\/use-voip-telephony-for-teleworking\/\">from home<\/a> or on several sites?<\/p>\n\n<h3 class=\"wp-block-heading\">Selection criteria to consider<\/h3>\n\n<ol class=\"wp-block-list\">\n<li><strong>Number of users<\/strong>: a PBX may be sufficient for a small structure, but a growing SME will quickly need a more flexible system.<\/li>\n\n\n\n<li><strong>Available budget<\/strong>: would you prefer to invest in long-term hardware (PBX\/IPBX) or spread out the expense with a cloud subscription?<\/li>\n\n\n\n<li><strong>Mobility and integration<\/strong>: should your employees be able to <strong>make calls<\/strong> from a CRM, a mobile application or a laptop?<\/li>\n\n\n\n<li><strong>Reliable Internet connection<\/strong>: without a stable <strong>Internet connection<\/strong>, VoIP becomes complicated.<\/li>\n<\/ol>\n\n<p><strong>Quick tip<\/strong><br\/>Make a list of your <strong>business needs<\/strong> before <strong>looking at the offers<\/strong>. This will help you avoid <strong>choosing a system that shines with its promises <\/strong>, but is oversized for your business. <\/p>\n\n<h2 class=\"wp-block-heading\">Modern solutions and tools for efficient in-house telephony<\/h2>\n\n<p>Today, <strong>companies are looking for solutions that are simple<\/strong>, quick to deploy and capable of evolving with them. The <strong><a href=\"https:\/\/kavkom.com\/en\/articles\/telephony\/ip-telephony-definition-and-operation\/\">IP telephony<\/a><\/strong> and <strong>cloud telephony<\/strong> are the perfect answer to this need. <\/p>\n\n<p>They <strong>connect<\/strong> <strong>employees wherever they work<\/strong>, integrate telephony with business tools (CRM, ERP, helpdesk), and centralize all communications in a single dashboard.<\/p>\n\n<p>Some tools combine all these functions in a single platform. For example, Kavkom offers a 100% cloud telephony solution for <a href=\"https:\/\/kavkom.com\/en\/feature\/productivity\/availability-status\/\">in-house teams<\/a>, with predictive dialers to accelerate prospecting and real-time supervision to coach agents &#8211; all without outsourced call services. <strong>Set-up<\/strong> takes just a few minutes, no hardware is required, and billing is prorated. <\/p>\n\n<style>\/* \u2500\u2500 Reset scop\u00e9 \u2500\u2500 *\/\n    .blog-cta-custom-basic-wrapper,\n    .blog-cta-custom-basic-wrapper *,\n    .blog-cta-custom-basic-wrapper *::before,\n    .blog-cta-custom-basic-wrapper *::after {\n      box-sizing: border-box;\n      margin: 0;\n      padding: 0;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       WRAPPER PRINCIPAL\n    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\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    .blog-cta-custom-basic-left {\n      flex: 1 1 0;\n      min-width: 0;\n      display: flex;\n      flex-direction: column;\n      align-items: flex-start;\n      gap: 12px;\n    }\n    .blog-cta-custom-basic-logo {\n      height: 24px;\n      width: auto;\n      display: block;\n    }\n    \/* \u270f\ufe0f MODIFIER le texte d'accroche *\/\n    .blog-cta-custom-basic-headline {\n      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n      font-size: 14px;\n      font-weight: 400;\n      color: #ffffff;\n      line-height: 1.45;\n    }\n    .blog-cta-custom-basic-headline strong {\n      font-weight: 700;\n    }\n    \/* \u270f\ufe0f MODIFIER href et texte du bouton *\/\n    .blog-cta-custom-basic-btn {\n      display: inline-block;\n      max-width: 100%;\n      padding: 9px 22px;\n      background-color: #2e6ff5;\n      color: #ffffff !important;\n      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n      font-size: 13px;\n      font-weight: 600;\n      text-decoration: none !important;\n      border-radius: 999px;\n      border: none;\n      cursor: pointer;\n      transition: background-color 0.2s ease;\n    }\n    .blog-cta-custom-basic-btn:hover {\n      background-color: #1d4fd8;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       COLONNE DROITE \u2014 image compl\u00e8te\n    \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    .blog-cta-custom-basic-right {\n      flex: 1 1 0;\n      min-width: 0;\n      display: flex;\n      align-items: center;\n      justify-content: center;\n    }\n    .blog-cta-custom-basic-visual {\n      width: 100%;\n      max-width: 100%;\n      height: auto;\n      display: block;\n      border-radius: 6px;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       RESPONSIVE MOBILE\n    \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    @media (max-width: 767px) {\n      .blog-cta-custom-basic-wrapper {\n        flex-direction: column;\n        padding: 16px 16px 0;\n        gap: 12px;\n      }\n      .blog-cta-custom-basic-left {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-btn {\n        width: 100%;\n        text-align: center;\n        padding: 12px 18px;\n        font-size: 14px;\n      }\n      .blog-cta-custom-basic-right {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-visual {\n        border-radius: 0;\n      }\n    }\n  <\/style><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     KAVKOM BLOG CTA \u2014 Type 2 horizontal\n     Copier ce bloc dans vos articles\n     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><div class=\"blog-cta-custom-basic-wrapper\"><!-- \u2500\u2500 Colonne gauche \u2500\u2500 --><div class=\"blog-cta-custom-basic-left\"><img decoding=\"async\" class=\"blog-cta-custom-basic-logo\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2023\/09\/Kavkom-logo-white-footer.webp\" alt=\"Logo Kavkom\"\/><!-- \u270f\ufe0f MODIFIER le texte d'accroche --><p class=\"blog-cta-custom-basic-headline\">Boostez la productivit\u00e9 de vos \u00e9quipe commerciales gr\u00e2ce \u00e0 Kavkom, le logiciel de <strong>t\u00e9l\u00e9phonie d&#8217;entreprise<\/strong> 100% cloud. <\/p><!-- \u270f\ufe0f MODIFIER href et texte du bouton --><a href=\"https:\/\/kavkom.com\/en\/free-demo-new\/?utm_campaign=agemia&#038;utm_source=blog&#038;utm_medium=new%20cta\" class=\"blog-cta-custom-basic-btn\">Planifier une d\u00e9mo<\/a><\/div><!-- \u2500\u2500 Colonne droite : visuel complet \u2500\u2500 --><div class=\"blog-cta-custom-basic-right\"><img decoding=\"async\" class=\"blog-cta-custom-basic-visual\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2026\/04\/CTA-bas-de-page-1920-x-850-px.png\" alt=\"Aper\u00e7u Kavkom\"\/><\/div><\/div>\n\n<h2 class=\"wp-block-heading\">Costs and profitability of an internal telephony system<\/h2>\n\n<p>Price is often the decisive argument. But you have to look beyond the immediate cost to understand profitability. <\/p>\n\n<h3 class=\"wp-block-heading\">Visible and hidden costs<\/h3>\n\n<p>A PBX <strong>switchboard<\/strong> involves an initial hardware purchase (server, box, cabling). Added to this are maintenance, technical interventions and sometimes software licenses. The result: a hefty bill that&#8217;s hard to anticipate.  <\/p>\n\n<p>An <strong>IPBX<\/strong> reduces hardware investment, but often requires a dedicated server and IT skills. Implementation and upgrade costs must also be taken into account. <\/p>\n\n<p>Cloud solutions are subscription-based. With Kavkom, activation is instantaneous, with no installation costs or commitment. Invoicing is 100% transparent and prorated to usage, guaranteeing total cost control.  <\/p>\n\n<h3 class=\"wp-block-heading\">Impact on productivity<\/h3>\n\n<p>A modern system isn&#8217;t just for <strong>making calls<\/strong>. It helps to <strong>streamline communication<\/strong>, reduce wasted time and deliver a better customer experience. A saturated line or an unsuccessful transfer is costly in terms of missed opportunities.  <\/p>\n\n<p><strong>At a glance<\/strong><br\/><strong>Communication costs<\/strong> are not limited to the <a href=\"https:\/\/kavkom.com\/en\/pricing\/\">monthly bill<\/a>. They also include the time saved or lost by your teams, the satisfaction of your customers and the ability to grow your business without technical constraints. <\/p>\n\n<h2 class=\"wp-block-heading\">Implementing a successful transition to a modern system<\/h2>\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/neuroncdn.com\/cdn-0001\/79e0e15bd672c0f0eb7910cb0d8392d81b73b910f2cdbe21530a2cfa5f9f7a55?ts=1760031023\" alt=\"-Illustration =&amp;gt; A horizontal frieze with 5 numbered pictograms: 1) Evaluate (magnifying glass), 2) Select (scale), 3) Prepare (file), 4) Train (group of people), 5) Follow (graph).    \"\/><\/figure>\n\n<p>Changing <strong>telephony systems<\/strong> can seem daunting. <strong>Many companies fear <\/strong>service interruptions, technical complexity or team resistance. However, with a structured plan, the migration goes smoothly, and can even become an opportunity to rethink internal communications. <\/p>\n\n<h3 class=\"wp-block-heading\">1. Evaluate the current system<\/h3>\n\n<p>Start by <strong>taking stock<\/strong>. What are<strong> the weaknesses in your infrastructure<\/strong>? <strong>Repeated breakdowns<\/strong>? <strong>Lack of mobility<\/strong> when your staff are on the move? Or the high <strong>cost<\/strong> of maintaining an aging PBX?    <\/p>\n\n<p>Note also what works well. <strong>Some switchboards <\/strong>still offer <strong>good autonomy for<\/strong> <strong>internal calls<\/strong>, but are blocking the company&#8217;s growth. You can use this snapshot as a basis for <strong>measuring the benefits of the new system<\/strong>. <\/p>\n\n<h3 class=\"wp-block-heading\">2. Choose the right model<\/h3>\n\n<p>Once you&#8217;ve identified your needs, it&#8217;s <strong>time to choose<\/strong>. The <strong>PBX<\/strong> <strong>remains an option<\/strong> if you already have the equipment and your uses are not changing. The<strong>IPBX<\/strong>, on the other hand, <strong>modernizes your communications<\/strong> while remaining hosted on your premises, but <strong>requires IT resources<\/strong>. As for <strong>cloud telephony<\/strong>,<strong> its flexibility and lack of hardware constraints make it an attractive option<\/strong>.   <\/p>\n\n<p><strong>Your choice will depend on your priorities<\/strong>: security, budget, scalability, integration with your business tools. <strong>Take the time to compare<\/strong>, as each system implies a different way of organizing day-to-day operations.<\/p>\n\n<h3 class=\"wp-block-heading\">3. Prepare for migration<\/h3>\n\n<p>A successful transition<strong> depends on good preparation<\/strong>. <strong>Back up your data<\/strong>, in particular your contacts and<strong>telephone call<\/strong> histories. <strong>Define access rights <\/strong>: who will have a direct <strong>telephone line<\/strong>, who will use an extension, and which employees will benefit from advanced features such as supervision or voicemail.<\/p>\n\n<p>And don <strong>&#8216;t forget to schedule migration outside peak periods<\/strong>. <strong>Setting <\/strong>up on a Friday evening or weekend will limit disruption. <\/p>\n\n<h3 class=\"wp-block-heading\">4. Train your teams<\/h3>\n\n<p><strong>A new system,<\/strong> however intuitive, <strong>can be disorientating<\/strong>. Plan short training sessions to <strong>explain the new features<\/strong>: simplified call transfers, online dashboard, <strong>Internet connection<\/strong> for calling from a laptop. <\/p>\n\n<p>Employees need to <strong>understand not only how to use the tools<\/strong>, but also how they make their daily lives easier. Present the system as a help, not as an additional constraint. <\/p>\n\n<h3 class=\"wp-block-heading\">5. Monitor performance<\/h3>\n\n<p>Once the system is in place, don&#8217;t stop there. Modern solutions offer detailed reports: <strong>call<\/strong> duration, call pick-up rate, average waiting time. Analyze this data on a regular basis to <strong>make sure your objectives are being met<\/strong>.  <\/p>\n\n<p>If you notice any blockages (for example, lost incoming calls at peak times), adjust your queues or routing rules. Monitoring is an<strong> ongoing process that keeps telephony smooth and efficient<\/strong>. <\/p>\n\n<h3 class=\"wp-block-heading\">A word of advice<\/h3>\n\n<p>Never underestimate <strong>the human dimension.<\/strong> Even the most advanced technology can fail if your teams don&#8217;t embrace it. <a href=\"https:\/\/www.hbrfrance.fr\/innovation\/pourquoi-la-majorite-des-transformations-numeriques-echouent-48917\" target=\"_blank\" rel=\"noopener\">According to Harvard Business Review France<\/a>, <strong>the majority of digital transformations fail<\/strong>, not because of the technology, but because of a <strong>lack of human involvement<\/strong>. <strong>Success depends<\/strong> on the ability to involve teams, gather their needs and change the organizational culture.<\/p>\n\n<p>Involve them in the project from the outset, gather their requirements, and involve them in the testing phase. This <strong>participative approach<\/strong> strengthens buy-in and transforms migration into a genuine collective project. <\/p>\n\n<style>\/* \u2500\u2500 Reset scop\u00e9 \u2500\u2500 *\/\n    .blog-cta-custom-basic-wrapper,\n    .blog-cta-custom-basic-wrapper *,\n    .blog-cta-custom-basic-wrapper *::before,\n    .blog-cta-custom-basic-wrapper *::after {\n      box-sizing: border-box;\n      margin: 0;\n      padding: 0;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       WRAPPER PRINCIPAL\n    \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    .blog-cta-custom-basic-wrapper {\n      width: 100%;\n   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background-color: #1d4fd8;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       COLONNE DROITE \u2014 image compl\u00e8te\n    \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    .blog-cta-custom-basic-right {\n      flex: 1 1 0;\n      min-width: 0;\n      display: flex;\n      align-items: center;\n      justify-content: center;\n    }\n    .blog-cta-custom-basic-visual {\n      width: 100%;\n      max-width: 100%;\n      height: auto;\n      display: block;\n      border-radius: 6px;\n    }\n    \/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n       RESPONSIVE MOBILE\n    \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 *\/\n    @media (max-width: 767px) {\n      .blog-cta-custom-basic-wrapper {\n        flex-direction: column;\n        padding: 16px 16px 0;\n        gap: 12px;\n      }\n      .blog-cta-custom-basic-left {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-btn {\n        width: 100%;\n        text-align: center;\n        padding: 12px 18px;\n        font-size: 14px;\n      }\n      .blog-cta-custom-basic-right {\n        width: 100%;\n      }\n      .blog-cta-custom-basic-visual {\n        border-radius: 0;\n      }\n    }\n  <\/style><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     KAVKOM BLOG CTA \u2014 Type 2 horizontal\n     Copier ce bloc dans vos articles\n     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><div class=\"blog-cta-custom-basic-wrapper\"><!-- \u2500\u2500 Colonne gauche \u2500\u2500 --><div class=\"blog-cta-custom-basic-left\"><img decoding=\"async\" class=\"blog-cta-custom-basic-logo\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2023\/09\/Kavkom-logo-white-footer.webp\" alt=\"Logo Kavkom\"\/><!-- \u270f\ufe0f MODIFIER le texte d'accroche --><p class=\"blog-cta-custom-basic-headline\">Boostez la productivit\u00e9 de vos \u00e9quipe commerciales gr\u00e2ce \u00e0 Kavkom, le logiciel de <strong>t\u00e9l\u00e9phonie d&#8217;entreprise<\/strong> 100% cloud. <\/p><!-- \u270f\ufe0f MODIFIER href et texte du bouton --><a href=\"https:\/\/kavkom.com\/en\/free-demo-new\/?utm_campaign=agemia&#038;utm_source=blog&#038;utm_medium=new%20cta\" class=\"blog-cta-custom-basic-btn\">Planifier une d\u00e9mo<\/a><\/div><!-- \u2500\u2500 Colonne droite : visuel complet \u2500\u2500 --><div class=\"blog-cta-custom-basic-right\"><img decoding=\"async\" class=\"blog-cta-custom-basic-visual\" src=\"https:\/\/kavkom.com\/wp-content\/uploads\/2026\/04\/CTA-bas-de-page-1920-x-850-px.png\" alt=\"Aper\u00e7u Kavkom\"\/><\/div><\/div>\n\n<h2 class=\"wp-block-heading\">FAQs on in-house telephones<\/h2>\n\n<h3 class=\"wp-block-heading\">What is an internal call and how do I make it?<\/h3>\n\n<p>An internal call is a communication that remains within the company&#8217;s <strong>telephone network<\/strong>. Simply dial an extension to reach a colleague, without going through an external operator. <\/p>\n\n<h3 class=\"wp-block-heading\">What&#8217;s the difference between a business switchboard and a cloud solution?<\/h3>\n\n<p><strong>Business switchboards<\/strong> are often based on physical hardware (PBX). <strong>Cloud telephony<\/strong>, on the other hand, dematerializes the infrastructure and enables you to manage your <strong>telephone calls<\/strong> from the Internet, with greater flexibility. <\/p>\n\n<h3 class=\"wp-block-heading\">Can small businesses use an IPBX or a cloud solution?<\/h3>\n\n<p>Yes. <strong>Small businesses<\/strong> often find cloud solutions an economic advantage. They avoid buying expensive hardware and benefit from <strong>advanced functionality<\/strong> right from the start. <\/p>\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n<p>An <strong>in-house telephone<\/strong> is the backbone of your daily exchanges.<\/p>\n\n<p>The <strong>PBX<\/strong> is still suitable for certain stable environments, but quickly shows its limitations. The<strong>IPBX<\/strong> offers modern functions, but remains cumbersome to manage. Finally, <strong>cloud telephony<\/strong> combines simplicity, mobility and scalability.  <\/p>\n\n<p>If your aim is to support the growth of your teams and streamline customer relations, the question is no longer &#8220;if&#8221; but &#8220;when&#8221; to <a href=\"https:\/\/kavkom.com\/en\/articles\/telephony\/complete-guide-to-migrating-to-an-enterprise-cloud-telephony-solution-for-smbs-5-steps\/\">migrate<\/a> to a <strong>cloud telephony solution<\/strong>.<\/p>\n\n<p>And if you want to move forward without constraints, there are players like Kavkom who offer immediate activation, with no commitment, and human support from the very first calls.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is precisely where the in-house telephone comes in. It helps to streamline exchanges between colleagues, better manage incoming calls and structure customer relations. In this guide, you&#8217;ll find out how these systems work, what their variants are, and above all how to choose the solution that really suits your needs. Points to remember : [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":63107,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[52],"tags":[],"class_list":["post-63257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-telephony"],"acf":[],"_links":{"self":[{"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/posts\/63257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/comments?post=63257"}],"version-history":[{"count":9,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/posts\/63257\/revisions"}],"predecessor-version":[{"id":66823,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/posts\/63257\/revisions\/66823"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/media\/63107"}],"wp:attachment":[{"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/media?parent=63257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/categories?post=63257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kavkom.com\/en\/wp-json\/wp\/v2\/tags?post=63257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}