This policy setting determines whether phone numbers are recognized and turned into hyperlinks, which can be used to invoke the default phone application on the system.
If you enable this policy setting, phone number detection is turned off. Users won't be able to modify this setting.
If you disable this policy setting, phone number detection is turned on. Users won't be able to modify this setting.
If you don't configure this policy setting, users can turn this behavior on or off, using Internet Explorer settings. The default is on.
| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Microsoft\Internet Explorer\Main\FormatDetection |
| Value Name | PhoneNumberEnabled |
| Value Type | REG_DWORD |
| Enabled Value | 0 |
| Disabled Value | 1 |