If you want to show your Microsoft Lync Status in all the share point pages, enable the settings Enable additional actions and Online Status for members in Central Administration.
- Open the Central Administration page.
- Click on Manage web applications.
- Select the web application you would like to configure
- From the ribbon select General Settings.
- In the section Person Name Actions and Presence Settings change the setting Enable additional actions and Online Status for members to Yes.
- Click OK to save changes.
Attached is the Screenshot for your reference.
Happy Share Pointing :-)