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VoIP Location Data and Emergency Calls: How It Works

On the old copper network, a 999 call carried your address automatically. VoIP makes location harder, which is why next generation 999 and Ofcom's location rules matter. Here is how emergency location works on a digital phone line.

5 Jun 2026 View & bid →

VoIP and 999 Calls: What the Rules Require

Calling 999 from a VoIP line is fully supported, but the rules around connectivity, location data and power resilience differ from the old analogue network. Here is what Ofcom requires providers to do and how to prepare for the PSTN switch-off.

5 Jun 2026 View & bid →

VoIP and Power Cuts: What Happens to Your Phone Line

When the mains fails, a VoIP line goes silent unless backup power keeps the router and adapter running. Here is how power resilience works, who must provide a battery backup, and what households should arrange before the PSTN switch-off.

5 Jun 2026 View & bid →

VoIP Call Quality: What Affects It and How to Improve It

A UK guide to VoIP call quality: how jitter, packet loss, bandwidth, codec choice, latency and router settings affect calls, plus practical steps and testing methods to diagnose and improve a noisy line.

5 Jun 2026 View & bid →

What Is a PBX Phone System? A Plain English Guide

A plain-English UK guide to PBX phone systems: what PBX means, the analogue, digital, IP and cloud types, how they manage internal and external calls, who uses them and what to weigh when replacing one.

5 Jun 2026 View & bid →

Cloud PBX Explained: What It Is and How It Works for Businesses

A UK business guide to cloud PBX: what it is, how it differs from traditional PBX and SIP trunks, the features it includes such as call routing and IVR, the cost model and how it scales as a business grows.

5 Jun 2026 View & bid →

SIP Trunking Explained: What It Is and How It Works

A plain-English UK guide to SIP trunking: what a SIP trunk is, how it replaces ISDN, how many channels you need, the cost model and how to choose a resilient provider ahead of the all-IP switch-over.

5 Jun 2026 View & bid →

Hosted VoIP vs On-Premise VoIP: What Is the Difference and Which Is Right for a Business?

Hosted VoIP runs the phone system in a provider's cloud, while on-premise VoIP keeps PBX hardware on site. This guide compares cost, maintenance, scalability and resilience to help businesses understand the difference.

5 Jun 2026 View & bid →

VoIP Explained: How Voice Over Internet Protocol Actually Works

VoIP turns speech into digital packets and sends them across the internet using protocols such as SIP and codecs such as G.711. This guide breaks down how a VoIP call is built, routed and kept clear.

5 Jun 2026 View & bid →

What BT Digital Voice Means for Existing Customers

BT is moving existing home phone customers from the analogue PSTN to Digital Voice as the network switches off by 2027. Learn what changes for you, whether you need a new router, and the support available for vulnerable customers.

5 Jun 2026 View & bid →

Openreach Digital Voice: What It Is and What You Need to Do

Digital Voice is the IP-based phone service replacing the analogue PSTN as Openreach retires its copper voice network by 2027. Find out how it works, what equipment you need and how power resilience is handled.

5 Jun 2026 View & bid →

How to Prepare for the PSTN Switch-Off: A Checklist for Homes and Businesses

With the all-IP migration completing in 2027, devices plugged into the phone line need checking now. This practical checklist covers auditing alarms, telecare, fax and EPOS, contacting providers, and who to ask for help.

5 Jun 2026 View & bid →

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