{
  "api": {
    "RTCDTMFToneChangeEvent": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent",
        "support": {
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            "version_added": "27"
          },
          "chrome_android": {
            "version_added": "27"
          },
          "edge": {
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          },
          "firefox": {
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          },
          "firefox_android": {
            "version_added": "52"
          },
          "ie": {
            "version_added": false
          },
          "opera": {
            "version_added": true
          },
          "opera_android": {
            "version_added": true
          },
          "safari": {
            "version_added": null
          },
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            "version_added": null
          },
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          },
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          "standard_track": true,
          "deprecated": false
        }
      },
      "RTCDTMFToneChangeEvent": {
        "__compat": {
          "description": "<code>RTCDTMFToneChangeEvent()</code> constructor",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent/RTCDTMFToneChangeEvent",
          "support": {
            "chrome": {
              "version_added": "27"
            },
            "chrome_android": {
              "version_added": "27"
            },
            "edge": {
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            },
            "firefox": {
              "version_added": "52"
            },
            "firefox_android": {
              "version_added": "52"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "samsunginternet_android": {
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            },
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            }
          },
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            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "tone": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent/tone",
          "support": {
            "chrome": {
              "version_added": "27"
            },
            "chrome_android": {
              "version_added": "27"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "52"
            },
            "firefox_android": {
              "version_added": "52"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "samsunginternet_android": {
              "version_added": "1.5"
            },
            "webview_android": {
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            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}