From the Voxbi blog

Guides, how-tos, and opinion on cloud phone systems, call handling, and running a business that is easy to reach.

Latest articles

Illustration of a business smartphone placing a call over 4G into a cloud PBX.

What is VoLTE and what it means for a business mobile fleet

VoLTE carries mobile calls as IP packets over the 4G network. Here's how the call path works, how it compares with VoWiFi and CSFB, and what to check before 2G and 3G go off air.

Illustration for a cloud PBX migration guide: a hosted platform and the teams that move to it.

Cloud PBX migration: how to bring your teams with you

A 90-day cloud PBX migration guide for European companies. Diagnose the ground, train by user profile, deploy in waves with written go/no-go criteria, and measure adoption once the system is live.

Cover illustration for a guide to SIP trunking for European businesses

What is a SIP trunk? A complete guide for European businesses

A SIP trunk connects your phone system to the public network over IP. How SIP trunking works, what it costs, and how to migrate without losing service.

Desk SIP phone shown as a network endpoint registered to a European cloud PBX platform.

Choosing a SIP phone in 2026: the complete guide

A SIP phone puts business telephony on your network. Handsets, cloud PBX architecture, call quality targets, security and EU hosting, in one guide.

Cover image for a guide on measuring and fixing VoIP call quality

VoIP call quality: what to measure and how to fix it

What VoIP call quality means in telephony terms, the four numbers that measure it, what breaks them, and the tests that show which part of the call path is at fault.

A recorded voice message turning into readable text a team can sort and route

Voicemail transcription: the complete 2026 guide

Voicemail transcription turns voice messages into readable text. How it works, where accuracy breaks, European hosting rules and a decision checklist.

Cover image for a guide to the public switched telephone network and copper lines

What is PSTN? The public switched telephone network explained

How the public switched telephone network works, which equipment still depends on it, and how it compares with VoIP, SIP and WebRTC.

Illustration of a hosted voice menu routing inbound calls to the right team

Cloud IVR: what it is and how to choose one

A cloud IVR answers, greets and routes your calls from a hosted platform. What it is, what it costs, how deep the menu should go, and how to check the hosting before you sign.

Illustration of voice packets dropping between two sites on a business phone network

What is packet loss and how to fix it for VoIP calls

Packet loss cuts VoIP calls into fragments long before a speed test notices. Here's how to measure it, find the cause and fix it across a multi-site network.

Cover graphic for a comparison of ten European cloud phone systems as Aircall alternatives

Aircall alternatives: 10 European cloud phone systems compared

Ten Aircall alternatives compared on hosting location, administration, integrations and price model, with how Aircall's own pricing plans are structured.

Cover art showing a phone call linking to a customer record on a screen

Computer telephony integration: a complete guide for business

Computer telephony integration ties your phone system to your CRM so an inbound call opens the right record. What it is, what to check, how GDPR applies.

Cover image for a guide to cloud PBX and cloud telephony for European companies.

Cloud PBX and cloud telephony: the complete 2026 guide

Cloud telephony keeps your switchboard in a provider's datacentres and delivers it as a service. This guide covers how a cloud PBX works, what it changes for a company with several sites, and how to judge hosting, compliance and resilience before you migrate.

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