The Skype add-on for Internet Explorer integrates with the Web browser by highlighting phone numbers so that you can click them once to make a call. While it may be a useful feature if you need it, it can become a nuisance, particularly in business scenarios where its usefulness is relatively limited and clicking and calling numbers by mistake can become a major irritation.
Disable the add-on through Internet Explorer to turn the feature off.
Open Internet Explorer and click on the cog icon (settings) in the top right of the window.
Click “Manage Add-ons.”
Scroll down the list of installed add-ons and find the Skype add-on. Click to highlight it and click the “Disable” button in
the bottom right. Note that there may be two or three Skype-related components, in which case disable all of them.
Close the window and then close Internet Explorer. The changes will take effect next time you start up your Web browser.
In later releases of Internet Explorer in ‘Options’ there is an ON|OFF switch:
“Detect phone numbers on sites so I can call them”
Set the switch to OFF