Microsoft Teams Phone System Solutions.

Microsoft Phone System and Direct Routing is the service inside of Teams that allows organizations to connect external phone lines and use Teams as an office phone system.

Microsoft Teams as a phone system

Alliance Communications offer a fully managed global cloud communication solution using Microsoft Teams. We can integrate Teams with Wildix and 8×8 or use Direct Routing to connect Teams users to our global Alliance voice network, allowing you to make and receive external calls.

Each solution is delivered as a fully managed service with full support and local account management with a dedicated Account Manager from Alliance Communications.

Microsoft Teams Partner UK - Alliance Communications

There are two scenarios to consider when using Microsoft Teams as your phone system.

Scenario One

Teams doesn’t provide my business with all of the phone system functionality I need.

The current limitations of Teams as a Phone system are as follows:

  • Very limited customer support
  • Expensive license costs
  • Only available in 33+ countries
  • Limited auto-attendant and call routing, only 3 options available
  • Limited call transfer options
  • No Contact Centre functionality
  • No call backs, barge-in or call barring
  • No detailed call reporting
  • No call recording
  • No CRM integration with Teams phone system


In this scenario we would recommend integrating your Teams environment with either of our market leading Cloud Telephony solutions, 8×8 or Wildix.

The benefits of Teams and Cloud Telephony integration are as follows:

  • Best of both worlds, market leading functionality integrated within your Teams application
  • A more cost effective solution
  • Access to Alliance customer support with dedicated account management
  • Call recording and extensive call reporting included
  • Full CRM integration
  • Full Contact Centre applications
  • Send and receive SMS, MMS and Faxes from Teams
  • Self service access to phone system settings

Scenario 2

Teams does provide my business with the phone system functionality I require.

Although the Teams phone system may provide the functionality you require, there are limitations in using the Microsoft Calling Plans:

  • The Microsoft Teams calling plans are expensive
  • No dedicated point of contact to port numbers, can be tricky, unclear and time consuming.
  • Limited new number availability
  • NGN Termination is not supported through Microsoft Calling Plans


In this scenario we would recommend using our Alliance Direct Routing service for your calls as this is more cost effective and provides additional functionality and enhanced support.   

Benefits of Teams with Alliance Direct Routing:

  • Alliance Direct Routing provides a 55% saving compared to Microsoft Calling Plans
  • More cost effective than other Direct Routing solutions in the market
  • Access to Alliance customer support with dedicated account management
  • Seamless, fully managed number porting 
  • Reliable SIP connectivity, resilience & availability
  • Call recording available
  • Ability to manage calls on both your existing telephony system and Microsoft Teams for a stepped or integrated solution

Why choose Alliance Communications?

We have more than 15 years experience as a telecommunications and cloud telephony provider. Utilising our network of selected technology partners, we shop around to find you the best deal and offer unrivalled support to keep your business connected.

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Client logo - Sprague Gibbons

“Alliance Communications have been our Cloud Telephony supplier for many years. We had an on premise solution previously which was difficult to support and didn’t meet our business needs, Alliance provided an excellent service in presenting the options available and then delivering and managing a Cloud solution which perfectly matched our communications needs. I wouldn’t hesitate to recommend Miles and his team to anyone looking for Telephony services.” 

Peter Gibbons – Managing Director, Sprague Gibbons

Contact us for a free consultation

To speak to one of our cloud telephony and telecommunications experts, or to arrange a free demo call us on 01173 700 900 or fill out the form below and one of our team will get in touch as soon as possible.