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Read the latest stories, use cases and updates to make optimal use of your business number.

Aerial view of Manchester city centre, the area covered by the 0161 code

Which towns does the 0161 area code cover and what it means for your business

A 0161 number is reserved for businesses with a recognised Greater Manchester presence, not for any UK company that wants a Manchester prefix. This article lists the towns inside the 0161 area, explains the Ofcom geographic-association rule and shows how to check whether your business qualifies before applying.

CallFactory / 22 Apr 2026 / 10 min read

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London skyline with Tower Bridge and the City, the area covered by the 020 code

Which towns does the 020 area code cover and what it means for your business

A 020 number is reserved for businesses with a recognised London presence, not for any UK company that wants a capital prefix. This article lists the towns inside the 020 area, explains the Ofcom geographic-association rule and shows how to check whether your business qualifies before applying.

CallFactory / 22 Apr 2026 / 10 min read

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Schema showing three stacked components on the left side and a single realtime speech model on the right side

Two ways to build an AI voicebot: stitching versus realtime

The way an AI voicebot processes speech determines whether it sounds natural or slow and disjointed. Stitching stacks three separate components, whilst a realtime speech model handles the entire conversation in one go. For most business call flows, realtime delivers the best results, though stitching remains valuable for post-call analysis.

Jan / 22 Apr 2026 / 4 min read

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Comparison between a dedicated IVR server in Europe and a shared cloud API in the United States

Why a dedicated IVR server or private API works faster than building on Twilio

Twilio is the obvious starting point for a call routing or voice application, but the shared American cloud falls short for many European businesses on log retention, data residency and support costs. This blog explains why a dedicated IVR server or private API from CallFactory solves those three constraints structurally, and when Twilio remains the right choice.

CallFactory / 22 Apr 2026 / 7 min read

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AI receptionist with headset for business telephony

AI Receptionist: 24/7 Availability Without Extra Staff Costs

A smart telephone assistant that takes calls, books appointments, and qualifies leads in fluent English, 24 hours a day, without the cost of extra staff.

CallFactory / 21 Apr 2026 / 5 min read

artificial-intelligence

0800 vs 0333 Numbers: Which is Best for Your Business?

Confused between Freephone 0800 and National 0333 numbers? We compare costs, caller perception, and features to help you decide.

CallFactory / 17 Jan 2026 / 2 min read

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