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Enhancing your Teams deployment with PBX and PSTN Trunking Integration

Microsoft Teams is proving to be one of the most popular Chat and Collaboration platforms available to business. It’s combination of persistent chat, file storage, and group conversations delivers real benefits to businesses. However in order to get the most significant productivity benefits from Teams, businesses need to integrate Teams with their existing telephony infrastructure, or work through a Transformation programme to replace that infrastructure. This presents a number of significant challenges:

  • Although Microsoft offer telephony services as part of Teams it only delivers local breakout in a small number of countries (12 at the time of writing).  So companies wanting local break out in other countries need to implement their own gateways;
  • Businesses who have pre-existing contracts for the delivery of telephony contracts across the countries they operate in, may find the native Microsoft telephony pricing is much less competitive;
  • Businesses who want to retain their existing telephony infrastructure in some areas of the business (for example manufacturing locations where Teams might not be appropriate, or overkill) can end up with two separate number plans, and may well have to use off-net dialling to make calls between the different parts of the organisation.  The same may occur when businesses are migrating from one infrastructure to the other as part of a Transformation.  In both cases an extended period of dual running can lead to significant Off-net call costs.

There is one other challenge for a business: they end up with a solution where no one is responsible for the end-to-end quality of the telephony services.  So Service Interruption or Degradation becomes an issue that the business has to solve.  This places a significant overhead on the operation of the service.

At JT we have worked with our customers to create a solution that delivers a uniform numbering plan, preserves on-net calling between existing 3rd party PBXes and Teams, and provide a single point of contact for quality and management issues.  Our solution:

  • Allows integration between Skype For Business Online and/or Teams with existing PBX and/or SIP trunk implementations
  • Allows customers to transition at a pace they find comfortable.  This avoids “big-bang” changes to a multi-site/country environment
  • Leverages existing PBX platforms for: user profiles that do not fit Teams or Skype for Business online; analogue services; and emergency services which Microsoft services cannot support
  • Leverages existing SIP PSTN capabilities ensuring site PSTN numbers and user PSTN numbers are retained
  • Leverages any existing PBX applications such as the IVR for call routing and any Contact Centre environments as well as any existing enhanced monitoring platforms which may be able to be used to give a single pane of glass to monitor both Microsoft and the existing PBX

As part of this we provide a single point of contact, and responsibility for managing the quality of the call delivered across the WAN and SIP components of the solution.  This minimises the supplier management overhead for our customers.

If you would like to discuss this further, or see a demo of the solution in action call us on 020 7920 2000, or email



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