This update adds an access code in the meeting invitation template in Microsoft Skype for Business 2015 (Lync 2013). This allows users to input the conference ID by clicking the PSTN number that is inside an email or a calendar invite to join the meeting.
Note You can turn off the feature by creating a new OneTapJoinForPSTNCallingOnMobile Group Policy Object (GPO). The registry type of the GPO setting is DWORD, the setting can be located at the HKCU\Software\Microsoft\Office\16.0\Lync\AddinPreference registry subkey.
Article ID: 4019641 - Last Review: May 15, 2017 - Revision: 9