Business phone systems and VoIP in Cardiff
From one-person firms to multi-site teams, Cardiff businesses rely on Alltone Telecoms for phones, numbers and call handling that work from any location. Local numbers, UK-based support and no lines to install.
Telecoms for Cardiff businesses
Cardiff is home to Welsh Government departments, financial firms around Central Square and a growing media sector. Bilingual Welsh and English greetings are easy to set up on a cloud system.
We set up and support everything remotely, and our services are delivered across Wales, with Welsh and English greetings available. Where an engineer visit is needed for broadband, leased lines or cabling, we arrange it through national partners.
Cardiff at a glance
| Area code | 029 |
|---|---|
| Number format | 029 20xx xxxx |
| County or area | Cardiff |
| Region | Wales |
| Freephone and national | 0800, 0808, 0330, 0333 |
Services in Cardiff
Choose a service to see what is included, or ask us to quote for a complete setup.
- Business VoIP phone systems in CardiffCloud phone system with apps, desk phones and a web dashboard.›
- Inbound call management in CardiffRoute every incoming call to the right person, team or site.›
- Call answering service in CardiffLive UK receptionists who answer in your company name.›
- Outbound calling in CardiffShow your business number, record calls and stay within Ofcom rules.›
- Microsoft Teams calling in CardiffMake and take real phone calls inside Microsoft Teams.›
- PSTN switch-off migration in CardiffMove off analogue and ISDN lines before they are retired.›
- Business broadband in CardiffFull fibre and FTTC broadband with static IPs and UK support.›
- Leased lines in CardiffDedicated, symmetrical fibre with a fix-time SLA.›
A local 029 number for your business
People are more likely to answer and return calls from a number they recognise. A 029 number gives you a Cardiff presence on your website, Google Business Profile and adverts, while calls ring whichever phones you choose.
Cardiff business phone questions
Something else on your mind? Call 020 7112 8558 or send us a message and a telecoms specialist will reply.
What is the area code for Cardiff?
The area code for Cardiff is 029. Local numbers are written in the format 029 20xx xxxx. The 029 code is also used in Caerphilly.
Can I get a 029 number if my office is not in Cardiff?
Yes. A virtual 029 number can ring any phone in the UK, which is useful if you serve customers in Cardiff from another base or work from home. The number should be used for genuine business in or with the Cardiff area.
Can I keep my existing Cardiff number if I move to VoIP?
Yes. We port 029 numbers from your current provider to our cloud platform, so you keep your number and stop paying for the old line.
How does the PSTN switch-off affect businesses in Cardiff?
Openreach is retiring the analogue phone network across the UK, including Cardiff, with a fixed date of 31 January 2027. Any business in Cardiff still using analogue or ISDN lines, or devices that depend on them, needs to move to a digital service.
Get a quote for your Cardiff business
Tell us how your business takes calls today and we will recommend a setup, with a clear monthly price. Most quotes are ready the same day.
- UK-based support team
- Free setup and number porting on most plans
- Monthly rolling options available
- No obligation quote
Prefer to talk? Call 020 7112 8558, Monday to Friday, 9am to 5.30pm.