{"id":31892,"date":"2026-09-05T21:19:08","date_gmt":"2026-09-05T21:19:08","guid":{"rendered":"https:\/\/www.dataroad.pt\/central-telefonica-cloud-ou-instalacoes\/"},"modified":"2026-10-25T14:10:30","modified_gmt":"2026-10-25T14:10:30","slug":"cloud-telephone-system-or-premises","status":"publish","type":"page","link":"https:\/\/www.dataroad.pt\/en\/central-telefonica-cloud-ou-instalacoes\/","title":{"rendered":"Cloud or On-Premises Telephone System"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"31892\" class=\"elementor elementor-31892\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-797397c4 e-flex e-con-boxed e-con e-parent\" data-id=\"797397c4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e142f0 elementor-widget elementor-widget-text-editor\" data-id=\"4e142f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"dr-page\">\n<h1>Cloud phone system or on-premises<\/h1><p class=\"dr-lead\">Choosing between a cloud telephony system or on-site systems depends on the number of branches and the cost-balance point. Here are the three questions that decide which is more profitable.<\/p><style>.dr-pair2{position:relative;z-index:4;max-width:1140px;margin:30px auto 30px;padding:0;display:flex;flex-wrap:wrap;gap:0}.dr-pair2>a{flex:1 1 50%;max-width:50%;min-height:226px;display:block;position:relative;padding:22px 25px 11px 26px;background-position:50% 50%;background-size:cover;background-repeat:no-repeat;text-decoration:none!important}.dr-pair2-a{background-image:url(\"\/wp-content\/uploads\/2023\/07\/dark-bg.png\");background-color:#16181d}.dr-pair2-b{background-image:url(\"\/wp-content\/uploads\/2024\/05\/red-bg.png\");background-color:#8e1017}.dr-pair2 i.flaticon{position:absolute;left:26px;top:96px;font-size:35px;line-height:1;color:#fff}.dr-pair2 .dr-pair2-in{display:block;padding-left:58px}.dr-pair2 .dr-pair2-h{display:block;font-family:\"Fira Sans\",sans-serif;font-weight:600;font-size:26px;line-height:33.8px;color:#fff;margin:0 0 10px}.dr-pair2 .dr-pair2-d{display:block;font-family:Rubik,sans-serif;font-size:16px;line-height:24px;color:#fff;margin:0 0 20px}.dr-pair2 .dr-pair2-cta{display:inline-flex;align-items:center;gap:14px;font-family:Rubik,sans-serif;font-size:14px;font-weight:600;letter-spacing:0.5px;text-transform:uppercase;color:#fff}.dr-pair2>a:hover .dr-pair2-cta{gap:22px;transition:gap .2s}@media (max-width:991px){.dr-pair2{margin-top:20px;padding:0}.dr-pair2>a{flex:1 1 100%;max-width:100%;min-height:0;padding:26px 22px 24px}.dr-pair2 i.flaticon{position:static;display:block;margin:0 0 12px}.dr-pair2 .dr-pair2-in{padding-left:0}}<\/style><div class=\"dr-pair2\"><a class=\"dr-pair2-a\" href=\"\/en\/ip-pbx-telephone-system\/\"><i class=\"flaticon flaticon-telephone\"><\/i><span class=\"dr-pair2-in\"><span class=\"dr-pair2-h\">Hosted VoIP for businesses<\/span><span class=\"dr-pair2-d\">Installation, ported numbers and support included<br>In both models, cloud or on-premise<\/span><span class=\"dr-pair2-cta\">Read more...<svg width=\"34\" height=\"10\" viewbox=\"0 0 34 10\" fill=\"none\" aria-hidden=\"true\"><path d=\"M0 5h31M27 1l5 4-5 4\" stroke=\"currentColor\" stroke-width=\"1.6\"\/><\/svg><\/span><\/span><\/a><a class=\"dr-pair2-b\" href=\"\/en\/it-unlimited-it-services\/how-much-does-a-business-phone-system-cost\/\"><i class=\"flaticon flaticon-money-bag\"><\/i><span class=\"dr-pair2-in\"><span class=\"dr-pair2-h\">How much does a telephone system cost<\/span><span class=\"dr-pair2-d\">What makes the price go up, and what is missing from the quotes<br>Price settled after three questions<\/span><span class=\"dr-pair2-cta\">Read more...<svg width=\"34\" height=\"10\" viewbox=\"0 0 34 10\" fill=\"none\" aria-hidden=\"true\"><path d=\"M0 5h31M27 1l5 4-5 4\" stroke=\"currentColor\" stroke-width=\"1.6\"\/><\/svg><\/span><\/span><\/a><\/div><div class=\"dr-kp3\"><div class=\"dr-kp3-in\"><div class=\"dr-kp3-i\"><svg viewbox=\"0 0 24 24\" aria-hidden=\"true\"><polyline points=\"23 6 13.5 15.5 8.5 10.5 1 18\"><\/polyline><polyline points=\"17 6 23 6 23 12\"><\/polyline><\/svg><div class=\"dr-kp3-t\">Breakeven point: 3-4 years<\/div><p>From then on, the place usually works out better.<\/p><\/div><div class=\"dr-kp3-i\"><svg viewbox=\"0 0 24 24\" aria-hidden=\"true\"><polyline points=\"16 3 21 3 21 8\"><\/polyline><line x1=\"4\" y1=\"20\" x2=\"21\" y2=\"3\"><\/line><polyline points=\"21 16 21 21 16 21\"><\/polyline><line x1=\"15\" y1=\"15\" x2=\"21\" y2=\"21\"><\/line><line x1=\"4\" y1=\"4\" x2=\"9\" y2=\"9\"><\/line><\/svg><div class=\"dr-kp3-t\">Hybrid is possible<\/div><p>On-premise main system + remote extensions and cloud queues.<\/p><\/div><div class=\"dr-kp3-i\"><svg viewbox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M5 12.55a11 11 0 0 1 14.08 0\"><\/path><path d=\"M1.42 9a16 16 0 0 1 21.16 0\"><\/path><path d=\"M8.53 16.11a6 6 0 0 1 6.95 0\"><\/path><line x1=\"12\" y1=\"20\" x2=\"12.01\" y2=\"20\"><\/line><\/svg><div class=\"dr-kp3-t\">The network decides first<\/div><p>VoIP does not forgive a network without traffic prioritisation.<\/p><\/div><\/div><\/div>\n\n<p><strong>The right question is not which is better, but for how many years you will use this control unit.<\/strong> Under three years, or with distributed teams, the cloud wins almost every time. Above that, and with everyone in the same building, on-premises usually works out cheaper. This page compares the two models point by point.<\/p>\n\n<h2>Direct comparison<\/h2>\n\n<table>\n<thead><tr><th><\/th><th>Cloud hub<\/th><th>Switchboard on site<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>Initial investment<\/td><td>Ground floor: telephones and installation<\/td><td>Top: equipment and licences<\/td><\/tr>\n<tr><td>Monthly cost<\/td><td>Monthly fee per extension<\/td><td>Maintenance and traffic only<\/td><\/tr>\n<tr><td>Break-even point<\/td><td>\u2014<\/td><td>Typically between the 3rd and 4th year<\/td><\/tr>\n<tr><td>Updates<\/td><td>Included, automatic<\/td><td>Planned, on your own account<\/td><\/tr>\n<tr><td>Grow or shrink<\/td><td>Immediate, month-to-month<\/td><td>It depends on the licensing purchased<\/td><\/tr>\n<tr><td>Multiple installations<\/td><td>It is the same call centre for all of them<\/td><td>Require site links<\/td><\/tr>\n<tr><td>Remote working<\/td><td>Extension anywhere, no extra setup<\/td><td>Possible, but requires a VPN or secure publishing<\/td><\/tr>\n<tr><td>Internet outage<\/td><td>Switchboard is still operating; diverting to mobile phones<\/td><td>Internal calls continue; external ones depend on the connection<\/td><\/tr>\n<tr><td>Power cut in the building<\/td><td>It doesn't affect the central unit<\/td><td>Affected, save sized UPS<\/td><\/tr>\n<tr><td>Data and recording control<\/td><td>With the supplier, under a processing agreement<\/td><td>On your premises<\/td><\/tr>\n<tr><td>Local integrations<\/td><td>Possible, but it depends on the supplier<\/td><td>Totals, including legacy systems<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n<h2>When we recommend cloud<\/h2>\n\n<ul>\n<li>Companies with up to around 50 extensions and no special integration requirements.<\/li>\n<li>More than a facility, or a team working from home.<\/li>\n<li>Who wants predictable cost per seat and no equipment in the rack.<\/li>\n<li>Anyone moving premises in the short term \u2014 the switchboard keeps up with no building work required.<\/li>\n<li>Offices that open and close positions throughout the year.<\/li>\n<\/ul>\n\n<h2>When we recommend on-site<\/h2>\n\n<ul>\n<li>Many branches and a long horizon: at five years old the difference is significant.<\/li>\n<li>Isolation or retention requirements for recordings indoors.<\/li>\n<li>Integration with local systems \u2014 production, gatehouse, intercoms, legacy systems.<\/li>\n<li>Hotels and healthcare facilities with integration into the management software installed on-site.<\/li>\n<li>Unreliable internet connection with no reasonable alternative.<\/li>\n<\/ul>\n\n<h2>The hypothesis that rarely appears in proposals: hybrid<\/h2>\n\n<p>Keeping the PBX on-premises and moving only the remote extensions and call queues to the cloud is possible and, for companies that have already invested in a recent PBX, is usually the most economically sensible decision. It doesn't appear in proposals because it's not what either side prefers to sell.<\/p>\n\n<h2>The mistake that costs the most money<\/h2>\n\n<p>Decide on the model before looking at the network. Voice over IP does not forgive a network without traffic prioritisation, with unmanaged switches or with an uncontrolled shared internet connection. In the cloud, that sounds like dropouts and silences; on-premises, it sounds the same. Before choosing the model, check if the network is ready \u2014 it is the same check we do in any <a href=\"\/en\/networks-and-it-cabling\/\">network design<\/a>.<\/p>\n\n<p class=\"dr-ver-tambem\">Para empresas na capital, veja a nossa <a href=\"\/en\/it-support-for-businesses-in-lisbon\/\">assist\u00eancia inform\u00e1tica em Lisboa<\/a>, com suporte remoto, telef\u00f3nico e no local.<\/p><h2>Frequently Asked Questions<\/h2>\n\n<div class=\"dr-faq\">\n<p class=\"q\">Is the cloud data centre less secure?<\/p>\n<p>Not intrinsically. The conversation is encrypted in both models when properly configured, and the real difference lies in who is responsible for the infrastructure and the data processing agreement. A poorly maintained local exchange exposed to the internet is much riskier than a managed cloud service.<\/p>\n\n<p class=\"q\">Can I change model later?<\/p>\n<p>You can, and that is one of the reasons not to over-invest in the first decision. IP phones are usually reusable, and numbers are portable. What is not reusable are local PBX licences bought for ten years.<\/p>\n\n<p class=\"q\">What if I already have an old analogue or digital switchboard?<\/p>\n<p>Coexistence is possible during the transition. It is common to connect the old PBX to a gateway and migrate the extensions in phases, rather than changing everything over a single weekend.<\/p>\n\n<p class=\"q\">How many simultaneous calls do I need?<\/p>\n<p>The rule of thumb is between a quarter and a third of the number of extensions, adjusted to the type of activity. A sales team or customer service department needs more; a back-office, fewer.<\/p>\n<\/div>\n\n<h2>Contact us<\/h2>\n\n<p>We'll make the comparison with your numbers, across both models, over five years. Call me <strong>+351 211 459 950<\/strong> or write to <strong>sales@dataroad.pt<\/strong>. See also <a href=\"\/en\/it-unlimited-it-services\/how-much-does-a-business-phone-system-cost\/\">How much does a telephone system cost<\/a>.<\/p>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-drnote0c e-con-full e-flex e-con e-parent\" data-id=\"drnote0c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-drnote01 elementor-widget elementor-widget-text-editor\" data-id=\"drnote01\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"dr-note-contrato\" style=\"max-width:980px;margin:0 auto;padding:26px 30px;border:1px solid rgba(224,30,55,.35);border-left:4px solid #E01E37;border-radius:12px;background:rgba(224,30,55,.04)\"><div style=\"font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:#E01E37;margin-bottom:10px\">How we work<\/div><p style=\"margin:0 0 8px;font-size:16px;line-height:1.65\">This service is provided exclusively under an IT Unlimited contract.<\/p><p style=\"margin:0 0 8px;font-size:16px;line-height:1.65\">DataRoad does not provide one-shot support or sell equipment on a standalone basis. We work on a monthly contract basis, with full responsibility for the client's environment.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-drs1892a e-flex e-con-boxed e-con e-parent\" data-id=\"drs1892a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-drs1892w elementor-widget elementor-widget-text-editor\" data-id=\"drs1892w\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tundefined<section class=\"drx\" id=\"pbx-premium\"><p class=\"k\">Telephone exchange<\/p><h2>Central telef\u00f3nica para empresas: cloud ou nas instala\u00e7\u00f5es, com a escolha explicada<\/h2><p class=\"lead\">A DataRoad instala e gere centrais telef\u00f3nicas IP para empresas, na cloud ou nas instala\u00e7\u00f5es, e recomenda o modelo pelo uso real da empresa. O servi\u00e7o \u00e9 prestado em contrato IT Unlimited, com gest\u00e3o cont\u00ednua e suporte remoto, local e telef\u00f3nico.<\/p><div class=\"g3\"><div class=\"c\"><h3>Escolha pelo uso real<\/h3><p>Recomendamos cloud ou instala\u00e7\u00f5es consoante postos, liga\u00e7\u00f5es, sedes e necessidades de continuidade.<\/p><\/div><div class=\"c\"><h3>Voz integrada na rede<\/h3><p>Telefones, Wi-Fi e rede dimensionados em conjunto, para chamadas com qualidade.<\/p><\/div><div class=\"c\"><h3>Gest\u00e3o inclu\u00edda em contrato<\/h3><p>A central fica sob gest\u00e3o da DataRoad, sem depender de v\u00e1rios fornecedores.<\/p><\/div><\/div><div class=\"tw\"><table><thead><tr><th>Situation<\/th><th>Modelo recomendado<\/th><th>Why?<\/th><\/tr><\/thead><tbody><tr><td>V\u00e1rias sedes ou equipas remotas<\/td><td>Cloud hub<\/td><td>Acesso de qualquer local e gest\u00e3o centralizada<\/td><\/tr><tr><td>Escrit\u00f3rio \u00fanico com rede pr\u00f3pria bem dimensionada<\/td><td>Switchboard on site<\/td><td>Controlo total e integra\u00e7\u00e3o com a rede local<\/td><\/tr><tr><td>Continuidade cr\u00edtica<\/td><td>Cloud ou instala\u00e7\u00f5es com liga\u00e7\u00e3o de reserva<\/td><td>Menor risco de paragem em caso de falha<\/td><\/tr><tr><td>Crescimento previsto<\/td><td>Solu\u00e7\u00e3o escal\u00e1vel por postos<\/td><td>Acrescentar utilizadores sem refazer o sistema<\/td><\/tr><\/tbody><\/table><\/div><h3 class=\"s\">How we work<\/h3><ol><li><b>Survey<\/b>Postos, linhas, sedes e requisitos de utiliza\u00e7\u00e3o.<\/li><li><b>Proposal<\/b>Modelo recomendado e custos claros, em contrato IT Unlimited.<\/li><li><b>Instala\u00e7\u00e3o e migra\u00e7\u00e3o<\/b>Instala\u00e7\u00e3o e portabilidade planeadas para n\u00e3o interromper as chamadas.<\/li><li><b>Continuous management<\/b>Monitoriza\u00e7\u00e3o e suporte remoto, local e telef\u00f3nico.<\/li><\/ol><div class=\"cta\"><h3>Quer uma central telef\u00f3nica gerida por quem gere a sua rede?<\/h3><p>Servi\u00e7o em contrato IT Unlimited. Mais de 10 postos \u00b7 contrato de assist\u00eancia \u00b7 suporte remoto, local e telef\u00f3nico.<\/p><a class=\"b\" href=\"\/en\/contacts\/\">Request an analysis without obligation \u2192<\/a><a class=\"t\" href=\"tel:+351211459950\">\u260e +351 211 459 950*<\/a><small>*Calls to a Portuguese landline<\/small><\/div><\/section>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Central telef\u00f3nica: cloud ou nas instala\u00e7\u00f5es Escolher entre uma central telef\u00f3nica cloud ou nas instala\u00e7\u00f5es depende do n\u00famero de ramais e do ponto de equil\u00edbrio de custo. Aqui ficam as tr\u00eas perguntas que decidem qual compensa mais. Central IP para empresasInstala\u00e7\u00e3o, n\u00fameros portados e suporte inclu\u00eddoNos dois modelos, cloud ou localLeia Mais &#8230;Quanto custa uma [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/template-default.php","meta":{"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":"","footnotes":""},"class_list":["post-31892","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"Central telef\u00f3nica na cloud ou nas instala\u00e7\u00f5es? 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