Teams Voice, engineered for organisations with 200+ users.
Beckett Voice & Data designs, deploys and operates resilient Microsoft Teams voice estates for NHS Trusts, universities, councils and multi-site enterprises across the UK — replacing legacy Avaya, Mitel, Cisco and Unify PBXs with carrier-grade Operator Connect and Direct Routing.
What we do
Four ways into Teams voice — chosen by the shape of your estate, not by what we’re trying to sell.
Microsoft-managed PSTN, on a UK carrier
Single-tenant calling delivered directly into Teams via a Microsoft-approved carrier — minimal config, no SBC to operate, fastest path to live for organisations who want a clean managed service.
Full control over routing, SBCs and trunks
When you need bespoke routing, contact-centre integration, analogue gateways, or carrier choice the standard offerings can't accommodate. Active/active SBC pairs hosted in UK data centres, with carrier diversity built in.
Teams-native and integrated CCaaS
From compliant recording and skills-based routing to AI-driven analytics and workforce management — including platforms that plug into Teams as the agent endpoint without ripping out your existing investment.
Coexistence with Avaya, Mitel, Cisco, Unify
Phased cutover with hybrid SIP, parallel running and number-port choreography. Most enterprise migrations land between 8 and 16 weeks per major site — we plan the choreography so nothing drops on go-live day.
Who we work with
Built for the sectors where voice cannot fail.
Public-sector and regulated enterprise voice carries weight that consumer-grade Teams calling was never designed for. Our reference architectures are shaped by the operational reality of NHS clinical shifts, council contact-centre SLAs and academic timetables.
NHS Trusts
From acute Trusts with 1,200+ clinicians on a single estate to community providers spanning 40+ sites, we design voice that meets DSPT, NHS Digital and clinical-safety requirements without trapping you on a single carrier.
Higher & Further Education
Russell Group universities, MATs and FE colleges with 800 to 5,000+ users. Eduroam-aware location services, lecture-theatre integration, exam-period resilience and Janet-friendly SIP architectures.
Local Government & Councils
County and Unitary councils replacing aging Mitel and Avaya. We handle contact-centre continuity for revenues, benefits and adult social care so nothing drops during cutover.
Multi-site Enterprise
Manufacturing, logistics, professional services. UK and EMEA voice in one estate, with PSTN breakout in the right country for compliance and emergency calling.
Why Beckett
The boring kind of partner. The kind a CIO actually wants.
UK engineers, not offshored ticket queues
Every voice incident is handled by UK-based engineers in our Network Operations Centre. No tier-one scripts, no follow-the-sun handoffs that lose context between regions.
Carrier-agnostic, by design
We hold relationships with multiple UK and pan-European SIP carriers. When one breaks — and they do — we route around it. Your estate is not held hostage to a single supplier's outage.
We run what we sell
Our SBC platform is operated, monitored and patched by the same team that designs your architecture. Vendor support contracts, firmware lifecycles and security advisories are our problem, not yours.
Decades of UK telecoms heritage
Beckett's roots sit in traditional telephony maintenance — PBXs, gateways, the messy reality of mixed estates. That heritage is what makes our migrations from Avaya, Mitel, Cisco and Unify boringly predictable.
The enterprise guide
A long-read for CIOs serious about Teams voice at scale.
Twelve chapters covering connectivity models, resilience, call survivability, SIP trunking, security, licensing, contact centre, legacy PBX coexistence and the mistakes that quietly torpedo most 1,000+ user rollouts. Written by engineers who have done it, for decision-makers who need to get it right the first time.
- Teams Phone vs Direct Routing vs Operator Connect
- How to scale Teams voice beyond 1,000 users
- Resilience architecture
- Call survivability
- Disaster recovery strategy
- SIP trunk architecture
- Security & fraud prevention
- Licensing optimisation
- Integrating legacy PBX during migration
- Contact centre considerations
- Common mistakes in enterprise rollouts
- Case studies: NHS, University, Council
Planning a Teams voice rollout, or rescuing one that’s stalled?
Tell us where you are — pre-procurement, mid-migration, or live and struggling — and we’ll arrange a discovery call with a senior voice architect. No SDR funnels, no demo theatre.