Powerful Direct Routing solution for Microsoft Teams.


Microsoft Teams TranparentUse the Teams features you love with the telephony features you need.


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What is Direct Routing? Fact sheet Webinar


Cloud-hosted SBC.

The Session Border Controller is where the magic happens, connecting SIP, PSTN or ISDN into Microsoft Teams. They can be complex to configure and run, though, so just as well we do all that for you!

Keep your numbers.

Whether you choose to move your lines to us for free UK calls & resilience features or keep with your existing provider, you keep control of your vital inbound numbers, not Microsoft.

Keep your handsets.

In many cases we can help you re-use any SIP-enabled devices you may already have in the business thereby keeping your hardware costs to a minimum.

Managed and monitored. 

Our fully-managed option means you don't have to worry about trunk capacity, resource allocation or backup - we manage all that for you. Or if you prefer to keep control, we can set up and hand over.

Do I have the right licences?

Our experts are here to answer all your questions - and they're just a click away!

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Carrier resilience.

We're not tied to any SIP trunk provider, so we can send your traffic via multiple carriers, within the same contract, to mitigate against network outages.

Teams setup.

We'll help you with the setup on your Microsoft Teams environment too, including help ensuring you've got the right licenses.

Call Recording.

PCI, GDPR and MIFID 2 compliant call recording can also be added,  giving you full control over what is or isn't recorded.

Flexible failover.

If your calls can't get through to your endpoints, for whatever reason, we fail them over to mobiles or divert to voicemails in the cloud to ensure business continuity.

Will I be able to route calls in the same way?

Our experts are here to answer all your questions - and they're just a click away!

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Why One2Call?

Over 15 years' voice experience.

Microsoft Partner.

Audiocodes (SBC) Partner.

Specialist number porting team.

In-house knowledge.



Meet the Team

Why is Direct Routing so complicated?

Our experts are here to answer all your questions - and they're just a click away!

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What our customers say

"I would like to pass on my appreciation to the team at One2Call for the service we received.

You guys went above and beyond to deliver an excellent service and to minimise down time for us.

Jack and Adam were excellent throughout.  If you ever need somebody to do a write up or recommendation for you I would be more than happy to provide"

David Stocks
Financial Controller, Killis.

"I really appreciate your help today, especially so with the promptness of the service - you're brilliant.

The engineer who came was superb. He certainly knew what he was doing and he's fixed everything - all is good and working!

So thank you once again, you've saved us today".

Glenn James
Estimator, Stuart Pease Fibreglass Ltd.
“Jordan was brilliant in re-locating our PBX even when the system did not behave as expected after the move and reconfigure he worked through and made sure everything was working as expected.”
Mark Green
Go Green Ltd
“Absolutely spot on from start to finish, thank you to Ryan and Nick. You make my life easier!”

Laura Benfield
Employment Related Services Association (ERSA)
“Local, extremely helpful, prompt. Quick to react when there have been issues (not caused by One2call). Have recommended in the past to clients.”

Mark Frickling
Modern Creatives
“Our move and installation of new IT infrastructure and phone systems couldn’t have been any smoother. The advice we had and technical guidance and support meant we felt totally at ease. Would definitely recommend One2call!”

“Stayed late on a Friday evening to fix my computer. Thank you”

Sarah Wroe
Commercial Property Partners
Personal, real people service. IT with traditional, feel safe values.
Eric Johnson
Director, Client Services

Our people

Real people with real solutions.

it's our in-house skills and knowledge, and how quickly they can be accessed, which keeps our customers happy.

Meet the team.