On-premise Phone Systems
Premises-based PBX systems for businesses with regulatory, control or connectivity constraints - including SpliceCom, our own UK platform.
About on-premise phone systems
Cloud is the right answer for most businesses, but not every business. Where regulation, security policy or connectivity ruled cloud out, an on-premise PBX is still the right tool. Telappliant supplies, installs and supports the major on-premise platforms - including SpliceCom, the UK-designed system we now own outright.
On-premise gives you total control. Data stays inside your network, configuration sits on hardware you own, and your phone system carries on working even if your internet goes down. For courts, secure facilities, healthcare settings and some financial firms, those are non-negotiable requirements.
We design on-premise systems for resilience - dual power, hot-standby controllers, geo-redundant sites and local survivability for branch offices. Maintenance is delivered by our UK engineers with 4-hour or next-business-day SLA depending on site criticality.
On-premise does not mean isolated. We connect on-premise PBXs to cloud SIP trunks, Teams direct routing, cloud-based reporting and our AI services - so you get on-premise control with cloud-era functionality.
If your future direction is cloud, we will design a migration path - on-premise today, hybrid tomorrow, full cloud when the business is ready. No forced upgrades and no contract penalties for moving.
What's included
The capabilities included as standard with this service.
SpliceCom platform
UK-designed PBX owned by Telappliant - long-term roadmap commitment.
Multi-vendor support
Mitel, NEC, Avaya and 3CX systems also supported.
Geo-redundant clustering
Active-active controllers across two sites for highest resilience.
Local survivability
Branch sites keep working for internal and emergency calls without WAN.
On-site engineer SLAs
4-hour and next-business-day options across mainland UK.
Cloud integrations
Connects to Teams, cloud SIP and AI services without losing on-premise control.
Where this fits
Common scenarios where this service delivers measurable value.
Regulated sectors
Courts, secure facilities, certain financial services where cloud is restricted.
Poor or unreliable connectivity
Sites where internet outages cannot stop internal communications.
Acquisition integration
Bring inherited on-premise PBXs under a single support contract.
Existing investment protection
Extend rather than replace a recent on-premise deployment.
Talk to us about on-premise phone systems
A short call, no obligation.
Talk to a UK technology partner who's done this for 20 years
Book a practical, no-pressure consultation. We'll review your current setup, show where AI communications, cloud telephony or managed IT could improve customer experience and reduce admin - and tell you straight if you don't need us.
- UK-based people, real account management
- Honest recommendations - even if it's not us
- Practical AI where it adds value, not hype
