{"id":19851,"date":"2026-10-14T17:29:26","date_gmt":"2026-10-14T15:29:26","guid":{"rendered":"https:\/\/glofera.com\/pbx-system-what-to-do-with-the-one-you-have-in-your-office\/"},"modified":"2026-10-14T17:41:17","modified_gmt":"2026-10-14T15:41:17","slug":"pbx-system","status":"publish","type":"post","link":"https:\/\/glofera.com\/en\/pbx-system\/","title":{"rendered":"PBX System: What to Do with the One You Have in Your Office"},"content":{"rendered":"<p>PBX stands for <em>Private Branch Exchange<\/em>. It&#8217;s the technical name for the device that has been routing your company&#8217;s calls for years from a closet, an attic, or the room where the mop is kept. <\/p>\n<p>If you&#8217;ve landed here, you probably have one and are in one of these three situations: it&#8217;s broken, you need to upgrade it, or someone has told you it&#8217;s obsolete. Let&#8217;s take it one step at a time, because throwing it away isn&#8217;t always the right answer. <\/p>\n<h2>What exactly do you have in that closet?<\/h2>\n<p>Three generations still work side by side in Spanish small and medium-sized enterprises:<\/p>\n<ul>\n<li><strong>Analog PBX.<\/strong>  Copper-pair wiring to each phone. Robust, simple, and functionally very limited: extensions, call transfers, and little else. <\/li>\n<li><strong>Digital PBX.<\/strong>  The 1990s and 2000s. They added voicemail, on-hold music, and basic menus. Many of them still work.  <\/li>\n<li><strong>IP PBX.<\/strong>  It&#8217;s the same device in your office, but it connects over a network instead of a copper line. It&#8217;s still your hardware, and you&#8217;re responsible for its maintenance. <\/li>\n<\/ul>\n<p>And the fourth option, which is no longer in your closet: the <strong>virtual PBX<\/strong>, hosted in the provider\u2019s cloud. It\u2019s the same thing, but the hardware belongs to someone else. We break down the differences between these last two in <a href=\"https:\/\/glofera.com\/en\/ip-pbx\/\">\u201cIP PBX: Types and Differences<\/a>.\u201d  <\/p>\n<h2>The Three Signs That Yours Is Worn Out<\/h2>\n<ol>\n<li><strong>No one knows how to set it up.<\/strong>  If every schedule change depends on a specific technician who sometimes answers, you no longer have a system\u2014you have a dependency.<\/li>\n<li><strong>The parts are secondhand.<\/strong>  When you have to look for a replacement part for a module on the secondhand market, it means the manufacturer has long since discontinued it.<\/li>\n<li><strong>You have no idea how many calls you&#8217;re missing.<\/strong>  It&#8217;s the most important indicator\u2014and the one people pay the least attention to. A traditional PBX doesn&#8217;t track calls that go unanswered. You&#8217;re operating blindly.  <\/li>\n<\/ol>\n<p>There are other symptoms, and we&#8217;ll go over them in <a href=\"https:\/\/glofera.com\/en\/signs-that-you-need-to-replace-your-phone-system\/\">the section on signs that it&#8217;s time to replace your phone system<\/a>.<\/p>\n<p><span style=\"font-weight: 400;\"><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-overflow:hidden;--awb-bg-size:cover;--awb-border-color:var(--awb-color4);--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;--awb-border-radius:30px 30px 30px 30px;--awb-width-large:100%;--awb-margin-top-large:50px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:50px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_2_5 2_5 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:20px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-column\"><div class=\"fusion-image-element\" style=\"text-align:center;--awb-max-width:200px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1920\" height=\"1409\" alt=\"Free demo of a virtual VoIP phone system for businesses\" title=\"free-demo-of-a-virtual-PBX-for-businesses\" src=\"https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas.jpg\" class=\"img-responsive wp-image-15325\" srcset=\"https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas-200x147.jpg 200w, https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas-400x294.jpg 400w, https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas-600x440.jpg 600w, https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas-800x587.jpg 800w, https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas-1200x881.jpg 1200w, https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas.jpg 1920w\" sizes=\"(max-width: 640px) 100vw, 600px\" \/><\/span><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_3_5 3_5 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-padding-right:55px;--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top:20px;--awb-margin-top-small:10px;--awb-margin-right-small:30px;--awb-margin-bottom-small:10px;--awb-margin-left-small:30px;\"><h4 class=\"fusion-title-heading title-heading-center\" style=\"margin:0;\"><\/span><\/p>\n<p style=\"text-align: center;\"><span data-olk-copy-source=\"MessageBody\">We analyze your company&#8217;s calls <strong>FOR FREE<\/strong><\/span><\/p><\/h4><\/div><div style=\"text-align:center;\"><a class=\"fusion-button button-flat button-large button-custom fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" style=\"--awb-margin-top:20px;--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color1);--button-border-radius-top-left:50px;--button-border-radius-top-right:50px;--button-border-radius-bottom-right:50px;--button-border-radius-bottom-left:50px;--button_gradient_angle:180deg;--button_gradient_top_color:var(--awb-color4);--button_gradient_bottom_color:var(--awb-color4);--button_gradient_top_color_hover:hsla(var(--awb-color4-h),calc(var(--awb-color4-s) - 5%),calc(var(--awb-color4-l) - 10%),var(--awb-color4-a));--button_gradient_bottom_color_hover:hsla(var(--awb-color4-h),calc(var(--awb-color4-s) - 5%),calc(var(--awb-color4-l) - 10%),var(--awb-color4-a));--button_text_transform:uppercase;--button_typography-letter-spacing:3px;--button_typography-font-family:&quot;Lato&quot;;--button_typography-font-style:normal;--button_typography-font-weight:700;\" target=\"_self\" href=\"#contacto\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">REQUEST A CONSULTATION<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/p>\n<h2>The middle ground that almost no one tells you about: SIP trunking<\/h2>\n<p>Here&#8217;s the nuance that gets lost in most articles on this topic. If your PBX is relatively modern and works well, <strong>there&#8217;s no reason to get rid of it just to upgrade your phone system<\/strong>. <\/p>\n<p>A SIP trunk replaces the physical lines coming into your PBX with an Internet-based voice connection. The PBX remains the same; what changes is how calls reach it. <\/p>\n<p><strong>I can&#8217;t wait:<\/strong><\/p>\n<ul>\n<li>You eliminate the cost of physical lines and primary cables.<\/li>\n<li>You can add or remove simultaneous channels without any construction work.<\/li>\n<li>You keep your phone numbers and your investment in hardware.<\/li>\n<\/ul>\n<p><strong>What you don&#8217;t gain\u2014and that&#8217;s what matters:<\/strong><\/p>\n<ul>\n<li>No mobility. Your team still can&#8217;t work using the company number when they&#8217;re out of the office. <\/li>\n<li>No statistics, no modern call recording, and no CRM integration. All of that depends on the PBX, not on how calls come in. <\/li>\n<li>The power outage is still leaving you without a phone.<\/li>\n<\/ul>\n<p><strong>When it makes sense:<\/strong> if you&#8217;ve recently paid off your PBX, if your team always works in the office, and if your biggest headache is the phone bill. It&#8217;s a reasonable stopgap for two or three years\u2014not a permanent solution. <\/p>\n<h2>The Decision Table<\/h2>\n<\/p>\n<div class=\"table-1\">\n<table width=\"100%\">\n<thead>\n<tr>\n<th align=\"left\">Your Situation<\/th>\n<th align=\"left\">What to do<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">PBX less than 5 years old, equipment always in the office, high bill<\/td>\n<td align=\"left\">SIP trunk and on-call support<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Faulty PBX with a substantial repair estimate<\/td>\n<td align=\"left\">Migrate. Repairing is a waste of money on an asset that will eventually become obsolete. <\/td>\n<\/tr>\n<tr>\n<td align=\"left\">People working outside the office<\/td>\n<td align=\"left\">Migrate. The SIP trunk does not address mobility <\/td>\n<\/tr>\n<tr>\n<td align=\"left\">A move to a new location is on the horizon<\/td>\n<td align=\"left\">Migrate. Moving a PBX is a risky project <\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Do you need call data or to integrate with the CRM?<\/td>\n<td align=\"left\">CMigrar. A traditional PBX will never give you those features. <\/td>\n<\/tr>\n<tr>\n<td align=\"left\">It was recently paid off, and everything is working fine<\/td>\n<td align=\"left\">Don&#8217;t change anything. Use Trunk SIP if you want to lower costs. <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\n<h2><\/h2>\n<h2>What to Do with Your Hardware If You Migrate<\/h2>\n<p>Not everything goes into the trash. <strong>IP phones<\/strong> are usually reconfigured for the new PBX. <strong>Analog<\/strong> phones are kept in service with an adapter, which is what matters for intercoms, warehouse phones, or elevators. The central unit is indeed discarded, and with it, the maintenance costs.   <\/p>\n<p>An important note about migration: <strong>Do not cancel your old lines until the number porting process is complete<\/strong>. If you cancel the line before then, the number may be released and lost. This cannot be reversed. The complete steps are outlined in <a href=\"https:\/\/glofera.com\/en\/ip-telephony-businesses\/\">\u201cHow to Implement IP Telephony Without Hassle<\/a>.\u201d   <\/p>\n<h2>Quick Questions<\/h2>\n<h3>What does PBX stand for?<\/h3>\n<p>Private Branch Exchange (PBX). This is the system that manages a company&#8217;s internal calls and its connection to the external telephone network, whether as physical equipment in the office or as a cloud-based service. <\/p>\n<h3>Can I upgrade my PBX without replacing it?<\/h3>\n<p>Yes, with a SIP trunk: it replaces physical lines with Voice over Internet Protocol while keeping your current PBX. It reduces the cost of lines, but it doesn&#8217;t provide mobility, statistics, or CRM integration, because those features depend on the PBX. <\/p>\n<h3>How long does a physical PBX system last?<\/h3>\n<p>They have a service life of seven to ten years, although many continue to function for longer. The real limit is usually not a breakdown, but rather the point at which the manufacturer stops providing support and spare parts must be sourced secondhand. <\/p>\n<h2>We&#8217;ll tell you whether to throw it away or reuse it<\/h2>\n<p>With the brand and model of your PBX, the number of people answering calls, and whether anyone works remotely, we can give you a clear answer in ten minutes. We\u2019ll analyze it for free, and if we conclude that you should stick with a SIP trunk for another two years, we\u2019ll tell you that too. <\/p>\n<p><a href=\"https:\/\/glofera.com\/en\/free-consultation\/\"><strong>Request your free communications analysis<\/strong><\/a><\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u00bfQu\u00e9 significa PBX?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Private Branch Exchange, centralita privada. Es el sistema que gestiona las llamadas internas de una empresa y su conexi\u00f3n con la red telef\u00f3nica exterior, ya sea como equipo f\u00edsico en la oficina o como servicio alojado en la nube.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u00bfPuedo modernizar mi centralita PBX sin cambiarla?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"S\u00ed, con un trunk SIP: sustituye las l\u00edneas f\u00edsicas por voz sobre internet manteniendo tu centralita actual. Reduce el coste de l\u00edneas, pero no aporta movilidad, estad\u00edsticas ni integraci\u00f3n con el CRM, porque eso depende de la centralita.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u00bfCu\u00e1nto dura una centralita PBX f\u00edsica?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Entre siete y diez a\u00f1os de vida \u00fatil, aunque muchas siguen funcionando m\u00e1s. El l\u00edmite real no suele ser la aver\u00eda, sino el momento en que el fabricante deja de dar soporte y los repuestos hay que buscarlos de segunda mano.\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>You have a PBX in your closet and aren&#8217;t sure whether to repair it, upgrade it, or get rid of it. Here are three signs that it&#8217;s on its last legs, the middle ground of a SIP trunk, and a chart to help you decide in a minute. <\/p>\n","protected":false},"author":8,"featured_media":19853,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[194,1132],"tags":[335,579,526,592,575,576,684,234,339,333,527,681],"class_list":["post-19851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-telecommunications","category-telefonia-ip-voip","tag-free-virtual-switchboard","tag-ip-switchboard","tag-ip-telephony","tag-pbx-en","tag-telecommunications-companies","tag-telecommunications-smes","tag-telefonia-empresas-en","tag-virtual-switchboard","tag-virtual-switchboard-companies","tag-virtual-switchboards","tag-voip-en","tag-voip-switchboard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PBX System: What to Do with the One You Already Have | Glofera<\/title>\n<meta name=\"description\" content=\"Should you repair your PBX, upgrade it with a SIP trunk, or migrate to the cloud? 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