{
  "_comment": "A button to open a hyperlink",
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "a",
  "attributes": {
    "class": "ms-fontColor-white ms-fontColor-white--hover",
    "href": "[$PhoneLink]",
    "target": "=if(0==1,'_blank','_self')"
  },
  "style": {
    "border": "none",
    "cursor": "pointer",
    "background-color": "transparent"
  },
  "children": [
    {
      "elmType": "div",
      "attributes": {
        "class": "ms-bgColor-blue ms-bgColor-blueLight--hover ms-fontColor-white ms-fontColor-white--hover"
      },
      "style": {
        "font-size": "12px",
        "font-family": "arial",
        "border": "1px solid Black",
        "border-radius": "=if(1==1,'7px','0px')",
        "box-shadow": "=if(1==1,'2px 2px #999','none')",
        "padding": "3px 5px 3px 5px"
      },
      "children": [
        {
          "elmType": "div",
          "attributes": {
            "iconName": "DoubleChevronRight"
          },
          "style": {
            "display": "=if('DoubleChevronRight' != '','inline-block','none')",
            "vertical-align": "middle",
            "padding-right": "5px"
          }
        },
        {
          "elmType": "div",
          "txtContent": "='Call: ' + [$PhNum]",
          "style": {
            "display": "inline-block",
            "font-family": "arial",
            "vertical-align": "middle"
          }
        }
      ]
    }
  ]
}