Business phone systems and VoIP in Southampton
From one-person firms to multi-site teams, Southampton 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 Southampton businesses
Southampton's port, logistics and marine businesses often run teams across shifts and sites. Hunt groups and mobile apps keep calls moving when people are on the quayside rather than at a desk.
We set up and support everything remotely, and our services are delivered across England. Where an engineer visit is needed for broadband, leased lines or cabling, we arrange it through national partners.
Southampton at a glance
| Area code | 023 |
|---|---|
| Number format | 023 80xx xxxx |
| County or area | Hampshire |
| Region | South East England |
| Freephone and national | 0800, 0808, 0330, 0333 |
Services in Southampton
Choose a service to see what is included, or ask us to quote for a complete setup.
- Business VoIP phone systems in SouthamptonCloud phone system with apps, desk phones and a web dashboard.›
- Inbound call management in SouthamptonRoute every incoming call to the right person, team or site.›
- Call answering service in SouthamptonLive UK receptionists who answer in your company name.›
- Outbound calling in SouthamptonShow your business number, record calls and stay within Ofcom rules.›
- Microsoft Teams calling in SouthamptonMake and take real phone calls inside Microsoft Teams.›
- PSTN switch-off migration in SouthamptonMove off analogue and ISDN lines before they are retired.›
- Business broadband in SouthamptonFull fibre and FTTC broadband with static IPs and UK support.›
- Leased lines in SouthamptonDedicated, symmetrical fibre with a fix-time SLA.›
A local 023 number for your business
People are more likely to answer and return calls from a number they recognise. A 023 number gives you a Southampton presence on your website, Google Business Profile and adverts, while calls ring whichever phones you choose.
Southampton 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 Southampton?
The area code for Southampton is 023. Local numbers are written in the format 023 80xx xxxx. The 023 code is also used in Portsmouth.
Can I get a 023 number if my office is not in Southampton?
Yes. A virtual 023 number can ring any phone in the UK, which is useful if you serve customers in Southampton from another base or work from home. The number should be used for genuine business in or with the Southampton area.
Can I keep my existing Southampton number if I move to VoIP?
Yes. We port 023 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 Southampton?
Openreach is retiring the analogue phone network across the UK, including Hampshire, with a fixed date of 31 January 2027. Any business in Southampton still using analogue or ISDN lines, or devices that depend on them, needs to move to a digital service.
Get a quote for your Southampton 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.