Practical advice for better business communications.
Guidance on Yeastar, Yealink, VoIP, SIP trunks, number porting and the UK phone network changes, written for SMEs making real buying and migration decisions.
From the blog.
Useful explanations, product guidance and migration advice from the Zero Telecommunications team.
Virtual Phone Numbers for UK Businesses: A Practical Guide for Remote and Hybrid Teams
Virtual phone numbers allow UK organisations to make and receive business calls over the internet on any device. Learn how cloud telephony supports hybrid working, protects personal mobile privacy, and cuts operational costs.
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Cloud VoIP Per-User Pricing vs Legacy ISDN Line Rentals: An SME Guide
A clear comparison between legacy ISDN line rentals and predictable per-user cloud VoIP pricing models for UK small and medium-sized businesses.
Read articleWhat Are the Implications of the UK PSTN Switch-Off for Businesses Still Using Analogue Lines?
Openreach is retiring the analogue copper network (PSTN). Learn what the PSTN switch-off means for your business, the risks of waiting, and how to transition smoothly to modern cloud telephony.
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Can existing phone numbers be kept intact while switching from PSTN to hosted VoIP?
Switching from PSTN to hosted VoIP doesn’t usually mean changing your business phone number. In most cases, you can keep the number your customers already know by porting it to your new VoIP service. With the UK’s PSTN switch-off approaching on 31 January 2027, now is a good time for SMEs to understand how number porting works, what to check before switching, and how to move to a modern phone system without disrupting customer communications.
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Remove stress when moving offices: How to keep your number and avoid downtime
Relocating your business doesn't have to mean losing calls, changing your number, or going quiet for days. Here's what actually needs planning before moving day.
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PSTN vs VoIP: Why you should upgrade now!
Discover how shifting from legacy PSTN to modern VoIP streamlines your workflows and significantly reduces monthly overheads. Making the upgrade now cuts unnecessary operational costs while effortlessly protecting your business from the upcoming network switch-off.
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Intergrating VoIP into your business - Making every day tasks easier
Switching phones can be a mess, a lot of manual work, new systems and features to learn but most of all, it can impact your routine. Learn about the benefits of changing to VoIP and how it makes your day to day job easier.
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Softphones: Keeping You Accessible
Learn the basics of the Softphone and how it can be beneficial for businesses to switch to a solution that gives you and your employees freedom to receive calls from home, on the road or in the office.
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2027 PSTN Switch off - What you need to know
With the eventual end of the Public Switch Telephone Network (PSTN) you may be left questioning what will happen.
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These evergreen guides sit alongside the blog and cover the questions we hear most often from SMEs.
Migration checklist
Check phones, alarms, lifts, door entry and other analogue dependencies before the 2027 deadline.
When a softphone makes sense
Choose the right interface for office, hybrid and mobile users.
How the integration works
Understand where Microsoft Teams can fit around a Yeastar P-Series PBX.