DB DataComms Ltd

Frequently asked

Answers, no fluff.

Clear answers on Wi-Fi, fibre, VoIP, AV and structured cabling. Use the search or filter by category — or just call us and we'll tell you straight.

Common questions we get asked.

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What's a predictive Wi-Fi survey and when do we need one? Wi-Fi

A predictive survey models coverage and capacity from drawings before install. Use it for new builds, refits, warehouses or when performance is inconsistent. We validate on-site after install to prove results match the heat-map.

Do you do on-site validation and tuning after install? Wi-Fi

Yes. We walk-test, then adjust channels, TX power and band-steering, fix interference and provide updated heat-maps with a short tuning report.

What is OTDR testing and why does it matter? Fibre

OTDR verifies splice quality and end-to-end loss, and pinpoints faults by distance. Results form part of your handover pack and make future fault-finding fast.

Single-mode vs multi-mode — which should we choose? Fibre

Single-mode for long runs or higher-bandwidth backbones; multi-mode is fine for shorter inter-cabinet links. We'll specify from drawings and growth plans.

Can we migrate from a legacy PBX to VoIP without downtime? VoIP

Yes. We stage in parallel, port numbers in a low-risk window and train users ahead of cutover. Interim call forwarding keeps you reachable throughout.

What happens to phones if the internet drops? VoIP

We design for failover: 4G/5G backup, call-route failover to mobiles, and desktop/mobile softphones. UPS is recommended for PoE switches and routers.

Will meeting rooms work with Teams, Zoom and BYOD? AV

Yes. We specify kits that support native clients or bring-your-own-device via HDMI/USB-C, tuned mics and DSP, and simple touch control.

When should we choose Cat6A over Cat6? Cabling

Cat6A is our default for new installs — it gives 10-gig headroom up to 100 metres and properly supports PoE+ and Wi-Fi 6/6E/7 access points. Every run is labelled and Fluke DSX certified, with results included in the handover pack.

Do you work nights and weekends, and alongside other trades? Projects

Yes. We're programme-led and can phase works out-of-hours to avoid disruption. RAMS, permits and CSCS/IPAF/PASMA are provided as needed.

How do you price, and how quickly can we get a quote? Pricing

Fixed proposals are produced from drawings and a short discovery or site survey. Simple works can be priced same-day; larger projects follow quickly after a site visit.

Do you offer ongoing support and maintenance? Support

Yes — planned visits, firmware, moves and changes, plus named engineers with response SLAs. We maintain an asset register and site notes for tidy handovers every time.

Where do you work? General

North-West and UK-wide. Warehouses, manufacturing, offices, education, healthcare — wherever the job is.

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