Phone system, centralised
One system handling reception, extensions, queues, voicemail and auto-attendants — tailored for small offices and teams of up to around ten people, with room to grow.
Business phone systems
Big-business call handling, small-business budget.
A modern phone system should cut your telecommunications bill, not add another vendor to manage. Suburban Secure scopes and deploys 3CX and Grandstream phone systems so calls reach the right person, on the right device, without legacy PABX costs.
Work from anywhere
Softphone apps for iPhone, Android, Mac and Windows keep your team reachable on the office number wherever they're working, so no call gets missed because someone was away from a desk.
Live chat and web integration
Website live chat tied into the same system lets a visitor reach a real person in seconds — often a faster path to a conversion than waiting on an email reply.
Two ways to get there — chosen for fit, not fashion.
3CX and Grandstream solve the same underlying problem from different directions. Suburban Secure scopes your call volume, budget and how mobile your team is before recommending either.
3CX: hybrid and mobile-first
A modern PBX that runs in the cloud, on-premise or hybrid, built around softphone apps rather than desk hardware. It suits organisations with hybrid or mobile staff, multiple sites, or anyone who wants call handling without a phone cupboard full of cabling.
- iOS, Android, Windows and Mac apps, plus a web client — no desk phone required
- Licensed per system by simultaneous call capacity rather than per user, which can suit growing teams
- Built-in live chat, video calls and call queues
- Best where mobility and remote/hybrid working matter more than physical handsets
Grandstream: traditional and on-premise
A more conventional IP-PBX approach: desk handsets, an on-premise UCM appliance, and no per-seat licensing to renew every year. It suits organisations that want a familiar desk-phone experience, predictable one-off hardware cost, and full on-site control.
- Desk IP handsets with the call quality and feel staff already expect
- One-off hardware purchase model, without a recurring per-user software licence
- Zero-touch provisioning across handsets, cameras and door access on one appliance
- Best where staff are desk-based and predictable capital cost matters more than mobility
What this can save.
Legacy phone lines, ageing PABX maintenance contracts and per-line SIP trunk fees are one of the more common quiet cost leaks we find during a service cost and vendor review. Replacing them with a right-sized 3CX or Grandstream deployment is often one of the more straightforward wins available.
A note on 3CX's free tier
3CX has previously offered a free plan for small teams, and vendor plans in this space change from time to time. Check 3CX's current small business plan directly for what's actually on offer today before treating any specific price point as guaranteed — we'll confirm current licensing as part of scoping any project.
Scoped, not templated
The right system depends on call volume, mobility and budget. A discovery conversation establishes which platform — and which tier — actually fits before anything is quoted.
Request a phone system reviewWhere this fits with the rest of Suburban Secure
A phone system is one part of a wider technology foundation, not a standalone purchase.
Read the companion articles
If you're setting up a new charity or business, our guide to getting the technology decisions right in 2026 covers platform, communications and phone strategy together. Deploying any phone system also means keeping the network it runs on secure — see our piece on building a security-first network.
Fixed-scope, not a retainer
Phone system projects are quoted upfront from what the discovery conversation finds, the same as any other Suburban Secure project.
See network security services