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Communications, UCaaS & VoIP Services

Empower your teams to communicate and collaborate anywhere, on any device. Our Communications & UCaaS solutions bring together voice, video, chat, meetings, messaging and collaboration into one seamless experience.

Whether you’re moving to cloud telephony, enhancing Microsoft Teams, migrating from PSTN, or modernising an on‑premises PBX, Spectrum Telecoms delivers the technology, expertise and support to keep your business connected.

UCaaS

UCaaS brings all your communication channels into one cloud-based platform.

Cloud Voice & VoIP

Reliable, flexible and feature-rich business voice services delivered over your internet connection.

Microsoft Teams Voice

Turn Microsoft Teams into your complete business phone system.

On-Premises & Hybrid

If cloud isn’t right for your business, consider a hybrid approach.

UCAAS

UCaaS brings all your communication channels into one cloud-based platform.

Cloud Voice & VOIP

Reliable, flexible and feature-rich business voice services delivered over your internet connection.

microsoft teams voice

Turn Microsoft Teams into your complete business phone system.

On-Premises & Hybrid

If cloud isn’t right for your business, consider a hybrid approach.

Modern Business Communications That Grow With You

Workforces today are distributed, mobile and digital-first. Outdated phone systems can hold you back — limiting productivity, driving up costs, and creating support challenges.

Our UCaaS and VoIP solutions are built to evolve with your organisation:

  • Communicate across voice, video, text and chat
  • Enable hybrid and remote teams
  • Integrate with tools like Microsoft Teams, Webex and leading CRMs
  • Unlock powerful capabilities such as AI analytics, call recording & IVR
  • Transition away from the PSTN ahead of the 2027 switch-off
  • Choose cloud, on-premises, or hybrid communications


Spectrum ensures you’re never left behind with outdated platforms or technology.

Technology Partners

We supply and support trusted, industry-leading UCaaS and VoIP platforms.

Ready to Modernise Your Business Communications?

Book a consultation with our specialists to discuss UCaaS, VoIP, SIP trunking or your PSTN migration.
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Cloud Voice & VoIP Solutions

Reliable, flexible and feature-rich business voice services delivered over your internet connection.

Features include:

  • HD voice calling
  • Softphone & mobile app capability
  • Hunt groups & call queues
  • Voicemail to email
  • Call forwarding & routing
  • Multi-site support
  • Number porting
  • Smartphone integration

Perfect for businesses modernising ageing phone systems or enabling hybrid teams.

Why Choose Spectrum for UCaaS & Communications?

We combine industry-leading platforms, expert guidance and long-term support to deliver a communications solution that simply works.

Our Customers Benefit From:

  • Multiple carrier SIP options for resilience
  • A choice of applications including Teams, Webex, Dialpad, 3CX, RingCentral & more
  • End‑to‑end implementation & adoption support
  • Transparent, predictable costs
  • Hybrid cloud & on-premises options
  • Dedicated UK support and account management
  • Future-ready solutions aligned with your growth

Our IP communications portfolio delivers everything you need to power your cloud telephony journey.

Unified Communications & Collaboration (UCaaS)

Key Capabilities

Voice Cloud telephony, VoIP calling & softphones

Video Conferencing High-quality, secure video meetings

Messaging & Collaboration  Real‑time chat, presence & team spaces

Text / SMS  Integrated messaging for customer communications

Microsoft Teams & Webex Integration  Direct Routing, Operator Connect & more

CRM Integration  Salesforce, HubSpot, Zendesk, Dynamics 365

CCaaS Integration  8×8, RingCentral, Dialpad, Five9, and more

Call Recording & Compliance  Secure, scalable storage

AI & Sentiment Analysis  Enhanced customer insight & agent support

IVR & Auto Attendants  Smart call routing

Analytics & Reporting  Visibility across your communications estate

Microsoft Teams Voice

Turn Microsoft Teams into your complete business phone system.
 
We provide Direct Routing, Operator Connect and Teams-certified devices, ensuring seamless calling inside the Teams interface.
Microsoft Teams

SIP Trunking Solutions

Why Choose SIP from Spectrum?

Spectrum partners with all major UK SIP trunking providers, offering a flexible and resilient approach tailored to your business.

  • Full compatibility assurance with your PBX or cloud app
  • Feature-rich calling capabilities
  • Competitive pricing and scalable channels
  • Multiple carrier options for resilience
  • Comprehensive support from deployment to optimisation

Whether you’re upgrading an on-prem system or moving towards the cloud, SIP provides a cost-effective, future‑proof foundation.

On-Premises Phone Systems & Hybrid Solutions

If cloud isn’t right for your entire organisation, we support:

  • On‑premises PBX systems
  • Hybrid configurations combining PBX + cloud services
  • Prem‑as‑a‑Service models
  • SIP Trunking to modernise legacy PBXs

Our hybrid approach ensures you can transition at the pace that suits your business.

PSTN & ISDN Migration Support

With the PSTN switch‑off approaching, every business must move to digital voice services.

We deliver a smooth, controlled migration with:

  • Replacement VoIP solutions
  • SIP trunking for existing PBXs
  • Phoneline+ for simple single-line replacements
  • Full project management and number porting

No disruption, no downtime — just a seamless transition.

Frequently Asked Questions

UCaaS (Unified Communications as a Service) is a cloud-based platform that brings together voice, video, messaging, conferencing and collaboration tools into a single system. It allows your teams to communicate from any device, anywhere.
VoIP provides cloud-based phone calling, while UCaaS includes VoIP plus video meetings, chat, file sharing, presence, mobile apps and collaboration tools. UCaaS is a full business communication suite.
Yes. Most organisations move to UCaaS to replace on‑premises PBX systems, reduce maintenance costs and support hybrid working. We also offer hybrid options if you prefer a phased migration.
Yes. We provide Direct Routing and Operator Connect to turn Microsoft Teams into a full business phone system, with complete support and optional Teams‑certified devices.

Absolutely. We support integrations with popular CRMs such as Salesforce, HubSpot, Dynamics 365, Zendesk and more — enabling screen‑pops, click‑to‑dial and improved customer experience.

A reliable business internet connection is essential. Spectrum can assess your current connectivity and recommend improvements such as FTTP, Ethernet or leased lines if needed.

SIP trunking connects your existing phone system (PBX) to the internet instead of traditional phone lines. It is cost‑effective, scalable and supports the switch to all‑IP voice services.

 

Yes. We provide migration planning, SIP trunking, cloud telephony and Phoneline+ solutions to ensure a smooth transition ahead of the 2025 PSTN switch‑off.
We partner with leading providers including Cisco, Microsoft, Gamma, 8×8, RingCentral, Dialpad, 3CX, Webex, Zoom and more — giving you complete choice and compatibility.
Yes. Our communications solutions include encrypted voice, secure signalling, advanced authentication and optional AI‑powered threat protection for compliance-focused industries.

Yes. We provide full implementation, number porting, user training, adoption support and ongoing UK-based technical support for your entire communications estate.

FAQ

Stilll have questions?

Contact our team on 01283 749 990 or drop your details into our contact form – we’re happy to help.

Focus on what matters most

Send us your requirements and budget we’ll explore which platform and service options will be suitable for you.

Saving you time and ensuring you get the best value for your business.

Client feedback
5 stars for superfast service.
The Pioneer Group
I love Spectrum they always do what they say
Royal Institute of Chartered Surveyors
Awesome World class customer service from Spectrum and Chloe as usual
Checkland Kindleysides
Super helpful and quick - my work phone got stolen and the team was able to issue a replacement immediately + were super helpful with follow up questions.
Warner Brothers
Spectrum very efficient in providing services. Response to emails is sooo quick and they always give good advice to issues.
Keep it up
University of Bristol
about us

Proud to help.

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.

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