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A modern, cloud-first phone system built for hybrid work, mobility, and multi‑site organisations.
Fully managed by Spectrum.
Microsoft Teams Voice brings all your calls, collaboration, and communication tools into one familiar platform. As certified Microsoft Operator Connect partners, Spectrum delivers a fully managed telephony service that replaces legacy phone systems with a cloud-based, reliable, and scalable solution.
Designed for the way your teams work today
Based on current enterprise adoption trends, organisations are moving to Teams Phone for several reasons.
Unified calling, messaging & meetings in one app
Teams Phone consolidates voice, video, chat, and collaboration into the experience your staff already use daily.
Cloud-first telephony built for hybrid work
Modern businesses need flexible calling from anywhere. Home, office, mobile with the same number and features. Make and receive internal and external calls directly in Microsoft Teams on your laptop, mobile, or desk phone, no complex hardware required.
Reliability and scale
Teams Phone is an enterprise-grade telephony system used by global organisations, offering enhanced call management and reduced infrastructure overhead.
Lower cost, reduced complexity
Businesses are eliminating old PBXs, SIP hardware, and maintenance costs by moving to a cloud solution managed from one admin centre.
It offers:
As a certified Operator Connect provider, we deliver:
Combined with our migration, configuration and training services, Operator Connect becomes the easiest way to move your organisation to Microsoft Teams Voice with confidence.
We specialise in:
We assess your current telephony, extension lists, analogue lines, room layouts and user needs to build the right solution
Full configuration design covering: User profiles (softphone, headset, desk phone) Call flows, queues, auto attendants Reception workflows Analogue migration planning Teams Rooms device specification
Spectrum engineers fully pre-build your Teams Voice environment using placeholder numbers, including: Queues, auto attendants, policies Emergency routing Device policies Operator Connect routing
We manage the entire porting process — liaising with your losing provider, validating number ranges, coordinating cutover, and completing all testing.
Testing internal/external calling, queue behaviour, voicemail, devices and emergency call functionality. Choose remote or onsite support to ensure a smooth transition. Ideal for multi-site cutovers and high-volume reception areas.
End-user Teams calling training Receptionist & high-volume call handler training Technical administrator training.
Yes. Spectrum handles the full number porting process, including validation, liaison with your current provider, test plans and coordinated cutover, ensuring no disruption to your service.
Most users require a Teams Phone Standard licence and a PSTN connectivity method such as Operator Connect. Shared devices and common‑area phones require Teams Shared Device licences, and meeting rooms require Teams Rooms Basic or Pro depending on the room complexity.
No. Operator Connect provides a 100% cloud‑based solution with no SBCs or servers needed onsite. All routing is handled securely through Microsoft Azure.
Absolutely. You can choose any combination of Teams‑certified devices including headsets, desk phones, conference phones and room systems. Each user can switch between devices seamlessly.
No. Spectrum pre‑configures your environment in advance and performs number porting at a planned cutover time. Your existing system remains active until the moment you move to Teams.
Yes. With Teams Phone, Operator Connect, call queues, auto attendants, call recording options, and contact centre integration, Teams can fully replace legacy PBXs and on‑prem phone systems.
Most modern business-grade connections are suitable. If required, Spectrum can advise on bandwidth, QoS and network readiness to ensure high‑quality voice performance.
We offer full migration assistance including discovery, design, configuration, staging, go‑live support, training, troubleshooting, and post‑deployment optimisation.
Yes. Many modern CCaaS platforms integrate directly with Teams. Spectrum can help you evaluate whether your current solution is compatible or recommend a Teams‑certified contact centre when needed.
Contact our team on 01283 749 990 or drop your details into our contact form – we’re happy to help.
Whether you’re replacing an ageing PBX, preparing for PSTN switch-off, or consolidating communications across multiple sites, Spectrum makes your move to Teams Voice simple, secure and future-proof.
Spectrum was created with the aim of providing clients with cost effective solutions for communication services, supported by exceptional account management.
Spectrum’s highly skilled and experienced team is focused on keeping at the forefront of telecoms technology including product differentiation and market leadership.
