A speed button allows frequently dialed numbers to be dialed quickly and accurately. The speed buttons appear on the Dialer dialog and also on the drop-down menu of the Connection button when it's caption is "Dial".
To edit a speed button, click the button to display the Dialer dialog. Right click a speed dialer icon:
Or click and select the desired speed button number to display the Edit Speed Button dialog:
After clicking the Dialer dialog now looks like this:
Or it can be accessed through the button drop-down menu:
