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Our Services

Session Telecoms is a Gold Partner for Ribbon products and solutions, using Microsoft© Teams Direct Routing as a UCaaS for business communication. Using our Ribbon range of products and solutions, all business communications can continue without the need to be office bound. Microsoft Teams Direct Routing allows integration of legacy telecoms systems, Skype for Business, PSTN and Teams seamlessly, all working together with the added benefits of Presence, Collaboration and Chat features.


Put simply, Direct Routing enables users to make and receive external calls within their Microsoft Teams environment. By default, Teams does not have any capability to make and receive PSTN calls. To enable this, you need to add a Microsoft Phone System licence (included with some Microsoft 365 and Office 365 bundles), as well as a Calling solution.

There are two options for Calling: Microsoft’s Calling Plans or using a Direct Routing provider. Think of a Direct Routing provider as essentially delivering ‘SIP Trunks for Microsoft Teams’.

Clearly there are benefits for adding calling to your Teams platform, and there are benefits for choosing Direct Routing as the method by which to do this. Let’s take each of these scenarios in turn….



An obvious one, but once you add the ability to make and receive external calls, your Teams platform becomes a true unified communications tool. Your employees can use it to collaborate and communicate with customers and partners, as well as with colleagues. This means less time wasted switching between tools. An employee working with a partner can, for instance, respond to a message, share a file and follow up with a call, all in one place.



Another benefit for your users is they don’t need to be tied to an on-site PBX, or be issued with company mobile phones, to make and receive external calls. Direct Routing turns Teams into a cloud telephony solution, available on any device running the Teams application. So employees can make external calls from various devices, wherever they are – on site, working remotely from home or out in the field.



The improved user experience for your workforce will have a knock-on effect for your customers. Staff will respond to customer enquiries more efficiently if they’re able to take external calls anywhere, on any device, without having to switch between applications. If customers or partners are interacting with your organisation through Teams in other ways (chat, filesharing, etc), adding the calling function makes the experience even more seamless.

So you’re convinced that adding calling will enhance your Microsoft Teams environment. The next step is choosing between Microsoft Calling Plans and Direct Routing. There are several benefits which make Direct Routing the preferred choice:



Direct Routing is competitively priced when compared to Microsoft Calling Plans. Also, with Microsoft Calling Plans, minutes are allocated per user per month, so if you have a user who burns through their allowance, you’ll have to ‘top up’. With a Direct Routing provider (like Session), calling plans are similarly charged per user per month, but minutes are pooled across users. So when your New Business Manager is making calls all day and your Data Entry Assistant hasn’t made a call all month, it nicely balances out.



Microsoft Calling Plans turns Teams into a light-touch PBX, but don’t expect any bespoke calling features. If for example, you’d like call management features within Teams for your contact centre agents, you’re better off looking at Direct Routing providers. A Direct Routing Provider like Session can provide SIP Trunk features within Teams such as number porting, VoIP numbers and Geographical numbers.




Direct Routing links the PSTN to Teams through Session Border Controllers (SBCs) and a SIP Trunk platform. Choose a provider with a great track record of providing SIP Trunking services and you get that assurance of high availability and reliability. It’s an important consideration, especially if you’re a 24/7 business where downtime in your Calling plan can seriously impact operations. Session Telecoms provide all these services and more...

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