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I am working on an adaptive card that is posted to users in Teams using Power Automate. The final thing I would like to add to the adaptive card, is a action button, that the user can click to call a person.

I have tried using both tel and sip in the URL. However nothing happens when the button is clicked.

Is this a limitation of Teams - or am I just doing it wrong?

"actions": [
    {
        "type": "Action.OpenUrl",
        "title": "Call Matt",
        "url": "tel:+4599999999",
        "id": "callMeId"
    }
]

Adaptive Card Designer

BR, Niels

Nielf
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1 Answers1

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You need to set the Microsoft Teams as default Apps for Tel Protocol. enter image description here

You can try putting following in browser: +46890510 it will navigate you to the Microsoft Teams enter image description here

it will open one pop up for Teams asking to call or not

Trinetra-MSFT
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  • Teams is already set as the default app for tel protocol - and it works fine in the browser or from an email etc. However, I can't get it working from an adaptive card in Teams using a Action button. – Nielf Jan 22 '21 at 09:51
  • Let me check this for Flow Bot or Adaptive Card Action button – Trinetra-MSFT Jan 22 '21 at 11:21