Business Phone Services

Lower your costs while improving your collaboration and reducing your admin overhead with our range of fully managed phone services

What is possible with our business phone services for SMEs and Enterprises

Unified communications

Integrate telephony with instant messaging, internal and external collaboration and file sharing, video or audio conferences and presence – all through one platform

Flexible working

Equip your team with the ability to make and receive calls and access meetings from any enabled device, from any location, no matter where they’re working

Always cheaper

We have never failed to save our customers money versus their previous solution, while providing modern capabilities and the flexibility to adapt and scale as your business grows

Advanced features

Additional features include HD voice, call recording, real-time captioning, MI dashboards, AI voicemail and inline chat transcription

Fully managed service

Our experienced team will handle your deployment, and provide ongoing support, oversight of performance & cost management

Modern hardware

Our close relationships with various industry-leading providers allow us to offer generous discounts on the latest hardware

Our Business Phone Services

Let our experts reduce your costs while improving your internal and external collaboration by guiding you to the most suitable and cost-effective phone service for your organization

Microsoft 365 Business & Enterprise Voice

Modern app-based telephony system that integrates into Microsoft Teams

No need to maintain a PBX and remove third party conference charges

Connect your existing telecoms provider directly into Microsoft Teams and use their calling plans, or…

…Use Microsoft’s default, generous domestic and international calling plans, or build your own Microsoft plans to match your users’ needs

Port existing numbers across, request new ones or mix and match – all managed through the Microsoft 365 admin console

Cloud-based Phone Services (Hosted PBX)

Flexible business phone service for any size organization

Remove the need for costly hardware and onsite maintenance

Make and receive VOIP calls from handsets, laptops, desktops or smartphones

Add and remove users or services as your business needs change

Port existing numbers across, request new ones or mix and match

On-Premise Phone Services (On-premise PBX)

Phone services deployed through servers located on your premises

Retain control of phone system data and settings, with our support where required

Our vendor partnerships mean we’re able to offer generous discounts on hardware

Port existing numbers across, request new ones or mix and match

Conference Room Services

Bring Microsoft Teams into your meeting rooms

Specialized hardware with touchscreen, HD video, HD voice, and screenshare

Collaborate internally and externally with high quality audio and video calls

Can be used in any size meeting room, from small pods to large conference rooms

Contact our business phone service experts today for an impartial assessment of which option is best suited for your business

Talk to us

Send us your invoices and we will cut your costs

We have never failed to find ways to save our customers money

Register below and a member of our team will contact you within 24 hours to discuss what information we need for your free, no commitment cost-cutting assessment

Free cost-cutting assessment

How Calligo helps

30-second case studies

Microsoft 365 Business Voice

  • Client: 90+ user professional services firm across Germany, India, Canada and UK
  • Problem: Disparate telephony systems, high management costs and high internal calling costs.
  • Solution: Calligo integrated Microsoft Business Voice with existing E3 subscriptions. Service included designing default calling plans and assigning local and simulated local numbers to every user
  • Results: Removal of third–party conferencing system, global consistency, reduced costs and better user experience.

Cloud-based Phone Service

  • Client: A 150-person professional services business with locations across the globe
  • Problem: Different comms platforms used in each location created inconsistency and extra expense, and restricted remote work
  • Solution: Calligo provided a VoIP PBX, hosted in a Calligo data centre, linking the 15 different company locations with SIP Trunks, and also provided IP Phones and softphones to every user
  • Results: Reduced overall costs by 40% and gave every user the flexibility to work remotely

Additional Services

In addition to reducing costs, we will make sure your business phone system meets any management, compliance or operational needs

Call recording

Manage performance and ensure compliance with secure and auditable recordings of your organization’s phone calls

Call reporting

Analyze all aspects of inbound and outbound calls, including time of day, duration and callers, with interrogable dashboard reporting

International users

Give your entire team consistent capabilities and simulate local presence for any user with local, international or non-geographic numbers

International calling

Keep international calling costs down with competitive calling plans, assigned to the entire company or specific users / teams

Fully managed professional set-up

Enjoy a totally hands-free onboarding process and ongoing support, performed by our award-winning global managed services team


Full PBX or Microsoft Teams set-up, plus desk phone installation and/or softphone configuration

Number assignment

We manage the porting process from previous suppliers, and/or set users up with new phone numbers

Additional tools

Set-up of Interactive Voice Response (IVR), voicemail, call recording, call reporting and more

24/7 Support

Ongoing technical support and maintenance as well as billing optimization and management

Contact Us

Contact our consultants to discuss how Calligo can make your data work harder for you

Talk to us