Microsoft Teams Direct Routing

Turn Microsoft Teams into your business phone system and experience unified communications.​

Gradwell SIP trunks

Cost-Effective Communications For Remote Working

New to Direct Routing?

Direct Routing is the process of connecting Microsoft Teams to the traditional phone network via external telephony providers, such as Gradwell, for organisations using Teams as their PBX.

This means being able to take advantage of migrating communications to the cloud, cheaper call rates, more flexibility and better support.

We’ve created a detailed guide to help you understand how it works and how it can help your organisation.

Get more from Microsoft Teams

Unify your communications

Combine your messaging, meetings, file management and phone system into one powerful system.

Make significant savings

Our call charges almost always beat Microsoft’s calling plans. Save huge sums on your calls across all users.

Built for remote working

Remote working isn’t going away, and neither is Teams. With Direct Routing, you can easily share documents and host meetings anywhere, on any device.

Reliable and secure systems

Our infrastructure is built to use the full power of AWS cloud hosting, with multiple redundancies.

Why Gradwell?

We are the UK’s SIP pioneers and we take pride in the resilience of our network. We have a team of over 20 developers who are constantly evolving and advancing our technologies. That’s why we’re trusted by hundreds of organisations for business-critical SIP services. See what else makes Gradwell stand out from the crowd…We’re one of the UK’s leading SIP technology specialists and played a key role in the development of Direct Routing with Microsoft.

Recognised experts

We helped pilot Direct Routing directly with Microsoft and our network is trusted by thousands.

Easy setup

Port over your numbers from almost any provider, together with personalised onboarding and training from our UK-based experts.

Usage & billing stats

Access calling records, billing and other key data to help you get the most out of your system, all in one place.

One-stop shop

We directly connect you to the PSTN network through our Microsoft Direct Routing service and SIP Trunks, including providing the licenses you need to enable your business.

Cost-effective communications

When compared to Microsoft’s own calling plans, Direct Routing is almost always the preferable way to get PBX functionality from Teams.
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Gradwell Direct Routing


No. of minutes 1,500 1,200
RRP From £4.50 per user/per month From £4.50 per user/per month
Payment method Direct Debit Credit Card
Payment date Post-date Pre-paid
Minutes pooled Yes Yes
Channel limits No No
International calling Unrestricted Restricted by credit card

Frequently asked questions

What is Microsoft Teams Direct Routing?

Great question! This feature allows you to make calls to businesses and customers throughout the world, all within Microsoft teams. By using a SIP trunk to route your calls over the internet it is a cost-effective solution all within one platform.

How does direct routing work?

We simply host a Microsoft Teams-certified Session Border Controller (SBC) within our own network, which we then connect to our SIP Trunks. We then add another trunk between the SBC and Microsoft Teams so we can configure the line and connect this up with your Teams accounts.

What is Microsoft Teams?

Teams is a communications app that offers a host of features such as instant messaging, video meetings and file transfers within an organisation.

I don’t have Microsoft Teams. Can I buy from you?

You can! However, this isn’t something we currently offer as we specialise in enabling calling within Teams.

What if I already have Office 365 but not Teams?

Depending on your Office 365 licence, you may have free access to Teams, but you may need to upgrade if this isn’t the case. Talk to us if you’d to discuss your organisation.

Why should I buy from Gradwell?

We are one of the UK’s top IP communications providers. We work with SMEs, charities and larger businesses to help them get the most out of modern telephony and communications software.

A reliable network

Our network is trusted by thousands of businesses for their communications every day.

We use the power of AWS combined with our own technology and experts to make Direct Routing easy, secure, and reliable. You can find out more about how we make our cloud communications infrastructure secure and resilient in this blog post

Gradwell Leased Lines deliver the ultimate connectivity experience, providing a dedicated connection

Trusted by schools & multi-academy trusts

We are already helping education customers across the UK to reduce costs, modernise, and future-proof their communications. 

Join thousands of businesses

We’ve helped organisations from across the UK take advantage of cloud-based communications tools. Can we help you?
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