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PSTN Calling for Ireland and Netherlands for Skype for Business Online Cloud PBX now in Public Preview


Exciting news, PSTN Calling for Ireland and Netherlands has been added to PSTN calling is the service where Microsoft provide your user phone numbers directly from the cloud, acting as your “PSTN carrier”. Currently, PSTN Calling is generally available for France, Puerto Rico, Spain, UK and US.

This functionality for Ireland and Netherlands is currently still under development, but you can sign up at and Microsoft will notify you once they are ready to onboard you.

Qualification for being in the preview:

  • You need an Office 365 billing address in one of the countries where PSTN Calling is available (tech preview or GA) – If you don’t have this you cannot go on to purchase a license.

Then to license end users:

  • The O365 service location profile country of the user must match the country of the phone number being provided.
  • You need to be able to provide a physical address for the user+phone number that is allowed by the national regulator – This varies between countries. In UK any UK address is allowed, but in France, addresses must be within a geographical zone within the country defined by the regulator.

Requirements for preview

  • 50 users using PSTN Calling with their Office 365 number as their main telephone number
  • Users are expected to complete frequent program surveys to provide feedback on experiences
  • Join occasional live feedback sessions and actively provide feedback

I’m sure Korneel is particularly excited Winking smile

Get signed up to get testing.

About the author

Tom Arbuthnot

Tom Arbuthnot is Principal Solutions Architect at Unified Communications specialist Modality Systems. He is a Microsoft Certified Master and MVP, blogger, has a regular podcast with UCToday at and is a regular speaker at events including Microsoft TechEd and Ignite. He co-runs The Microsoft UC User Group London.


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  • Very exciting news Tom, however I am still in this catch 22 where my EA is signed in Switzerland and so as much as I’d like to deploy the services to my users in Holland I still cannot (same scenario for my UK users or USA users). Very frustrating….

  • Hi Tom – I have a customer that has offices in both Netherlands and Ireland, they read on that your tenant needs to be in the country where you want to preview PSTN calling is that correct ?

  • Hey Tom,

    I have office in the Netherlands but we have customers in the UK. Wondering about taking a service number in the UK. So making MS my carrier in the UK while my tenant and users live in Cloud or On prem in Netherlands.
    I have question about the possibilities of PSTN In the cloud. With the Auto Attendant or Call queue, can i set the target to a on-premises SIP URI (RSG or an trustedapplicationendpoint) for the difficult callrouting back to agent that lives in the onprem/cloud.

Tom Talks Microsoft Teams and Skype for Business thoughts and news