{"id":615,"date":"2026-10-12T13:05:27","date_gmt":"2026-10-12T11:05:27","guid":{"rendered":"https:\/\/mu.klytic.com\/guides\/business-telephony\/"},"modified":"2026-10-12T13:38:20","modified_gmt":"2026-10-12T11:38:20","slug":"business-telephony","status":"publish","type":"page","link":"https:\/\/mu.klytic.com\/en\/guides\/business-telephony\/","title":{"rendered":"Telephony"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"615\" class=\"elementor elementor-615 elementor-489\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cf6b7a1 e-con-full kly-g e-flex e-con e-parent\" data-id=\"cf6b7a1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-574181a e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"574181a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-932d743 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"932d743\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8da02b2 elementor-widget elementor-widget-text-editor\" data-id=\"8da02b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-crumb\">Home<span>\u203a<\/span>Guides<\/p><p class=\"kly-g-pill\" style=\"--pill:#fb7185\">Telephony<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c8e8ae elementor-widget elementor-widget-heading\" data-id=\"2c8e8ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Telephony<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4853339 elementor-widget elementor-widget-text-editor\" data-id=\"4853339\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-lead\">A call leaves traces, passes through several parties and depends on a network link. This section separates two kinds of reading: understanding what a business phone system holds and exposes, then configuring <a href='\/en\/klytic-tel\/'>Klytic Tel<\/a> once the service is in place.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7a97b2 elementor-widget elementor-widget-text-editor\" data-id=\"c7a97b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-meta\"><span>Updated <b>October 2026<\/b><\/span><span><b>3 min<\/b><\/span><span>Understand and use<\/span><\/p>\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-0ff193f e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"0ff193f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-f0907b0 e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"f0907b0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc72acd elementor-widget elementor-widget-text-editor\" data-id=\"fc72acd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Who this section is for<\/h2><p>It is written for three readers. The executive choosing a phone system who wants to know who will keep the call history. The IT director or installer comparing an on-premises IP PBX, a hosted dedicated server and a shared service. The DPO or HR manager who has to set a policy for call recordings.<\/p><p>The \u201cUnderstand\u201d pages hold true whether or not you are a Klytic customer. They cite their sources and state, at the end, what Klytic covers and what it does not. The \u201cUse Klytic Tel\u201d pages assume the service is already in place. They describe what you get, who does what, and what is prepared with Klytic.<\/p><p>The same question can fall under both. \u201cHow long should a recording be kept\u201d is a legal rule: that is a guide. \u201cWho can listen to recordings in our phone system\u201d is a setting: that is a how-to page. The two pages link to each other.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bfeed5 elementor-widget elementor-widget-text-editor\" data-id=\"0bfeed5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Understand<\/h2><ul><li><a href='\/en\/business-telephony-data\/'>What a phone platform knows about your company<\/a>: directory, call history, recordings, voicemail, logs and backups, and the four parties that can see the numbers called.<\/li><li><a href='\/en\/voip-sip-ip-pbx-ucaas\/'>VoIP, SIP, IP PBX and UCaaS: which architecture<\/a>: definitions useful when buying, the choice between a shared service, a dedicated server or an on-premises installation, and how to organize multiple sites.<\/li><li><a href='\/en\/secure-ip-telephony-fraud\/'>Securing IP telephony and limiting fraud<\/a>: what is exposed on the Internet, the controls that reduce risk, and the signs of a hijacked account.<\/li><li><a href='\/en\/telephony-continuity-outage\/'>Keeping telephony running during an outage<\/a>: building, Internet link or platform, each outage calls for a different fallback, and a backup does not replace call forwarding.<\/li><li><a href='\/en\/call-recording-retention-period\/'>How long to keep call recordings<\/a>: purpose, informing the people concerned, a proportionate retention period, and the difference from backup retention.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59d9f2b elementor-widget elementor-widget-text-editor\" data-id=\"59d9f2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Use Klytic Tel<\/h2><ul><li><a href='\/en\/call-recording-access\/'>Who can listen to recordings in Klytic Tel<\/a>: where recordings are stored, how to limit listening to a few people, which lines to record, and what happens to a voicemail received by email.<\/li><li><a href='\/en\/telephony-multiple-sites\/'>Connecting multiple sites to Klytic Tel<\/a>: a single server or several interconnected servers for several sites, free and secure internal calls, what you prepare with Klytic, and porting your numbers.<\/li><\/ul><p>The offering itself, the four line types and the calling plans are described on the <a href='\/en\/klytic-tel\/'>Klytic Tel<\/a> page. Prices appear only on the <a href='\/en\/pricing\/'>Pricing<\/a> page.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-356662e elementor-widget elementor-widget-text-editor\" data-id=\"356662e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Hosting, applicable law and backup<\/h2><p>Telephony raises the same questions as email or documents: who operates the service, which law applies to that operator, where the copies are, how you leave. These questions are covered in the sovereignty guides and need not be repeated here: <a href='\/en\/what-is-sovereign-cloud\/'>What is a sovereign cloud?<\/a>, <a href='\/en\/protect-business-cloud-act\/'>Protecting a company from the CLOUD Act<\/a> and \u201cData hosted in Europe\u201d.<\/p><p>Two points specific to voice are already covered there. Encryption covers the path between your phones or apps and the platform, but not the part of a call that crosses external carriers\u2019 networks. And telephony backups follow a daily schedule, different from that of the other services: details are on the <a href='\/en\/security-backup\/'>Security &amp; backup<\/a> page.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c9ff204 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"c9ff204\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc44061 elementor-widget elementor-widget-html\" data-id=\"fc44061\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"html.default\">\n\t\t\t\t\t<nav class=\"kly-g-toc\" aria-label=\"On this page\"><p>On this page<\/p><ol><\/ol><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d30e293 elementor-widget elementor-widget-text-editor\" data-id=\"d30e293\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"kly-g-cta\"><h3>Planning a business phone system?<\/h3><p>Tell us how many lines and sites you have: we will propose a configuration.<\/p><p><a class=\"kly-g-btn\" href=\"\/en\/contact\/\">Talk to an advisor \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/en\/klytic-tel\/\">Discover Klytic Tel<\/a><\/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-91d9191 e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"91d9191\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8fb7c7d elementor-widget elementor-widget-text-editor\" data-id=\"8fb7c7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Further reading<\/h2><div class=\"kly-g-grid\"><a class=\"kly-g-card\" href=\"\/en\/business-telephony-data\/\" style=\"--cat:#e11d48\"><span class=\"c\">Understand \u00b7 Telephony<\/span><span class=\"t\">What a phone platform knows about your company<\/span><span class=\"q\">A call leaves traces even without recording: call history, directory, voicemail, logs, backups. Who holds them, and who can see the numbers.<\/span><span class=\"m\"><span>7 min read<\/span><b>Read \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/en\/voip-sip-ip-pbx-ucaas\/\" style=\"--cat:#e11d48\"><span class=\"c\">Understand \u00b7 Telephony<\/span><span class=\"t\">VoIP, SIP, IP PBX and UCaaS: which architecture<\/span><span class=\"q\">VoIP, SIP, IP PBX, UCaaS: definitions useful when buying, then the choice between a shared service, a dedicated server or on-premises, and multi-site setups.<\/span><span class=\"m\"><span>7 min read<\/span><b>Read \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/en\/call-recording-access\/\" style=\"--cat:#e11d48\"><span class=\"c\">Use \u00b7 Telephony<\/span><span class=\"t\">Who can listen to recordings in Klytic Tel<\/span><span class=\"q\">Where your recordings are in Klytic Tel, how to restrict listening to a few people, which lines to record, and the case of voicemail sent by email.<\/span><span class=\"m\"><span>5 min read<\/span><b>Read \u2192<\/b><\/span><\/a><\/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-539316dd e-con e-atomic-element e-div-block-base e-default-div e-c9fd865-4a50 \" data-id=\"539316dd\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"539316dd\" data-e-type=\"e-div-block\" data-id=\"539316dd\">\n    <div class=\"elementor-element elementor-element-4f79afcb e-con e-atomic-element e-div-block-base e-default-div e-4fa9fe-ce86 \" data-id=\"4f79afcb\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"4f79afcb\" data-e-type=\"e-div-block\" data-id=\"4f79afcb\">\n    \t\t\t<p class=\"e-4dcf5c70-2ec7 e-paragraph-base e-default-p\" data-interaction-id=\"330a7a35\" data-e-type=\"widget\" data-id=\"330a7a35\">Welcome offer<\/p>\n\t\t\t\t\t<h2 data-interaction-id=\"56f1f7d5\" class=\"e-347faa43-4e20 e-heading-base e-default-h2\" data-e-type=\"widget\" data-id=\"56f1f7d5\">30-day free trial, assisted migration<\/h2>\n\t\t\t\t\t<p class=\"e-7f6310da-1caa e-paragraph-base e-default-p\" data-interaction-id=\"2ce27288\" data-e-type=\"widget\" data-id=\"2ce27288\">No-commitment trial offer. An advisor will call you back to understand your needs and prepare your Klytic space.<\/p>\n\t\t<div class=\"elementor-element elementor-element-35ea29a1 e-con e-atomic-element e-div-block-base e-default-div e-1cd48b22-e6da \" data-id=\"35ea29a1\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"35ea29a1\" data-e-type=\"e-div-block\" data-id=\"35ea29a1\">\n    \t\t\t<a href=\"\/en\/30-day-free-trial\/\" target=\"_self\" class=\"e-4a7886e3-652d e-button-base e-default-a\" data-interaction-id=\"19bfa8f1\" data-e-type=\"widget\" data-id=\"19bfa8f1\">\n\t\ud83d\ude80 Start free trial\n<\/a>\n\t\t\t\t\t<a href=\"\/en\/pricing\/\" target=\"_self\" class=\"e-137e863d-dd0d e-button-base e-default-a\" data-interaction-id=\"326d82ab\" data-e-type=\"widget\" data-id=\"326d82ab\">\n\tSee pricing\n<\/a>\n\t\t\n<\/div>\n\n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":416,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_seopress_titles_title":"Business telephony: guides and how-tos | Klytic","_seopress_titles_desc":"Guides on phone data, architecture, security, continuity and call recordings, then how to use Klytic Tel.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"Business telephony: guides and how-tos | Klytic","_seopress_social_fb_desc":"Guides on phone data, architecture, security, continuity and call recordings, then how to use Klytic Tel.","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"Business telephony: guides and how-tos | Klytic","_seopress_social_twitter_desc":"Guides on phone data, architecture, security, continuity and call recordings, then how to use Klytic Tel.","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"class_list":["post-615","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/pages\/615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/comments?post=615"}],"version-history":[{"count":1,"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/pages\/615\/revisions"}],"predecessor-version":[{"id":741,"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/pages\/615\/revisions\/741"}],"up":[{"embeddable":true,"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/pages\/416"}],"wp:attachment":[{"href":"https:\/\/mu.klytic.com\/en\/wp-json\/wp\/v2\/media?parent=615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}