To redial a recent contact, simply double-click on the call. A list of recent calls will appear as well as a phone dialer. To place a call, click on the ‘Calls’ icon in your Skype for Business window. When dialing from Skype for Business, do not enter a 9 or a 1 as a prefix. The call can be answered by picking up the handset of your desk phone, or by clicking on the blue phone button.
When you receive an incoming call, Skype for Business should prompt with you to either answer or ignore the call.
