![\"Free](\"https:\/\/glofera.com\/wp-content\/uploads\/2026\/02\/demostracion-gratuita-centralita-virtual-para-empresas.jpg\" "\\"free-demo-of-a-virtual-PBX-for-businesses\\"")
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Analizamos GRATIS<\/strong> las llamadas de tu empresa<\/span><\/p><\/h4><\/div> The classic. It conveys local roots and works best for businesses that sell in their own area: clinics, accounting firms, garages, real estate agencies. A customer in Barcelona trusts a 93 more than a faceless national number.<\/p>\n You can have several area codes even if you only have one office. If you sell in Madrid and in Valencia, having a 91 and a 96 both entering the same PBX gives you a presence in both markets.<\/p>\n You pay for the call. Makes sense when you want to remove every excuse for a customer not to get in touch: after-sales support, general support, incident handling. It increases call volume, so it’s worth having someone lined up to answer before you publish it.<\/p>\n 800 works like 900 in practice. 902, on the other hand, is a number with a cost to the caller that has been dragging a bad reputation for years due to poor customer service; today it does more harm than good. If you still have a 902 published, that’s a change with an immediate return.<\/p>\n If your company makes outbound sales calls to individuals, regulations require you to identify yourself with a number in the 400 range. It’s not optional and it affects how your telephony is set up. We cover it in full in sales calls and the 400 prefix<\/a><\/strong>, and the general framework is in Order TDF\/149\/2025<\/a><\/strong>.<\/p>\n You don’t have to pick just one. The most common setup among the companies we work with:<\/p>\n And a rule that saves a lot of headaches: a single public number<\/strong>. Publishing four different numbers in four different places guarantees that one day one of them will stop being answered, and nobody will notice for months.<\/p>\n If you already have a number, there’s no need to change it. Portability is a right, the paperwork is handled by the new provider, and the service cutover, if well coordinated, takes minutes.<\/p>\n Three things that are worth keeping an eye on:<\/p>\n This is where the real shift happens. With a cloud-based PBX, your team calls using the company’s number from their own mobile<\/strong>. The customer sees the 93; the salesperson uses their usual phone.<\/p>\n That solves three problems at once: the salesperson doesn’t hand out their personal number, the company keeps the contact when that person leaves, and every call gets logged with statistics and recording. We go into this in how to work remotely without losing your business phone number<\/a>.<\/strong><\/p>\n And it explains why so many sales calls go unanswered: if you call from an unknown mobile, the customer doesn’t pick up. We analyze this in why customers don’t pick up the phone<\/a>.<\/strong><\/p>\nWhich numbering suits you<\/h2>\n
Geographic number (91, 93, 96, 95…)<\/h3>\n
900 number (free for the caller)<\/h3>\n
800 and 902 numbers<\/h3>\n
400 prefix: mandatory for sales calls<\/h3>\n
The combination that works for an SME<\/h2>\n
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Portability: you keep the number you already have<\/h2>\n
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The number on the team’s mobile<\/h2>\n
What you need to get it up and running<\/h2>\n