Unified Communications for UK Teams
Move from PSTN/ISDN to Teams calling, cloud or a resilient hybrid setup without disruption. Improve answer rates, simplify day-to-day admin, and get the right controls for resilience and compliance.
PSTN retires in January 2027 – are you ready?
The UK PSTN switch-off is the deadline – your opportunity is standardising how your organisation answers and routes calls. We help you move from PSTN/ISDN to Cloud and/or Microsoft Teams calling with a documented migration plan, clean number porting, and resilient design that fits your operating model.
• Migrate numbers with a documented cutover plan (minimal disruption, clear responsibilities)
• Choose the right route: SIP, Teams Direct Routing, or hybrid survivability—based on risk and sites
• Bring voice into a measurable service: answer rates, queue performance, reporting and governance
How Telappliant delivers unified communications
- Assess & map your current estate (numbers, sites, call flows, constraints, risks)
- Design the right route (Teams/SIP/hybrid) with resilience and compliance considerations
- Migrate & cut over with planned porting, testing, and user comms
- Operate & improve with UK support, reporting, and continuous optimisation
Communications Platforms
Pick the platform route that matches your organisation’s mix of sites, users, and risk tolerance. If you’re unsure, we’ll recommend the simplest option that meets resilience and compliance needs.
Cloud Phone Systems
Replace legacy PBX with a cloud phone system that’s easy to run across multiple sites and hybrid teams, without losing control of routing, reporting or policy.
✔ Central admin for users, sites, devices
✔ Call flows, queues and schedules designed to reduce missed calls
✔ Reporting and recordings to support operations, QA and governance
✔ Onboarding, number porting and UK-based support included
AI Voice Solutions
Handle routine inbound calls automatically and capture intent consistently, so people spend time on the calls that need a human touch to them.
✔ 24/7 handling for FAQs, triage and message capture to ensure customer support
✔ Structured summaries and next actions for teams
✔ Insight on demand: top intents, peak times, friction points
✔ Guardrails, escalation paths and reporting built in
On-premise & Hybrid Platforms
For organisations that need local control and continuity. Keep critical calling working even during connectivity issues while still centralising management where it makes sense.
✔ Local survivability to protect inbound / outbound calling
✔ Phased migration support (no forced big-bang changes)
✔ Multi-site routing with central administration
✔ Security, continuity and audit-friendly controls
VoIP Services
Modern voice foundations: trunks, numbering and Microsoft Teams connectivity – with porting and resilience handled as a managed service, not a DIY project.
SIP Trunks
Replace PSTN/ISDN with modern SIP trunking that scales with demand and supports continuity planning.
✔ Keep numbers and port cleanly with a documented plan
✔ Right-size concurrent call capacity as you scale
✔ Failover options for continuity and DR
✔ Works with Teams, Cloud platforms and on-premise systems
Microsoft Teams Direct Routing
Make Teams your phone system while keeping control of numbering, routing and resilience.
✔ Keep existing numbers and migrate with minimal disruption
✔ Centralised call routing, schedules and policies behind Teams
✔ Built for hybrid teams and multi-site organisations
✔ Clear support boundaries and operational ownership
Telephone Numbers & Call Plans
Predictable calling costs while you migrate, add sites, and scale without losing control of numbering.
✔ UK and international numbering to support growth
✔ Managed porting as a defined process.
✔ Bundles and plans that keep spend forecastable
✔ Works with Teams calling, SIP trunks and cloud platforms
Mobile Solutions
Mobile should complement your UC strategy – coverage-led, supportable, and governed. We’ll help you reduce admin while keeping users connected.
Mobile Contracts
Business mobile plans built around coverage, usage and your workforce model, so you’re not locked into one-size-fits-all.
✔ Plans that fit field teams, hybrid staff and multi-site operations
✔ Shared / pooling options where it reduces cost and admin
✔ Coverage-led recommendations created
✔ Optional managed support for adds, moves and changes
Multi-network SIMs
Improve uptime in poor coverage areas with SIMs that can switch networks automatically where available.
✔ Automatic best-signal selection (where supported)
✔ Better uptime for remote sites and field teams
✔ Designed for critical staff and resilience use cases
✔ Works alongside UC failover designs
Complete Business Mobile
A managed mobile service for organisations that want devices, SIMs, policies and support handled end-to-end.
✔ SIM-only or managed device options
✔ Roaming guidance and controls for travelling teams
✔ Policy and security support where required
✔ Single supplier model across mobile and communications
Communications Security
Reduce fraud and audit risk with voice controls that align to policy, without making calling harder for users.
Secure Voice Solutions
Reduce fraud and audit risk with voice controls that align to policy, without making calling harder for users.
✔ Reduce interception and fraud exposure
✔ Recording controls aligned to retention and policy
✔ Access controls that support audits and investigations
✔ Supervisor tools for monitoring, coaching and quality
PCI-Compliant Payment Solutions
Take card payments over the phone without sensitive card data entering your environment.
✔ Keep card data away from agents and systems
✔ Reduce fraud risk and compliance exposure
✔ Smooth experience for callers
✔ Clear controls and reporting
When can we talk?
Tell us what you’re trying to achieve – PSTN migration, Microsoft Teams calling, cloud telephony, SIP, or survivability. We’ll recommend the best route plus the migration steps (including porting and cutover).
Sales (new enquiries)
Book a video call (Sales)Enquiry & Support
Use the contact form for IT support enquiries, plan questions, or audit requests.