Systems, methods, and computer systems are disclosed for establishing a screen share session. One such method comprises a collaboration server receiving a message from an application executing on a mobile communication device. The message identifies that a voice call remote to the collaboration server has been initiated by the mobile communication device and established between a calling party using the mobile communication device and one or more called parties. The collaboration server determines that the calling party and the one or more called parties in the remote voice call have an active collaboration presence with the collaboration server. The collaboration server initiates a display of a screen share user interface control on a first computing device associated with the calling party and one or more second computing devices associated with the one or more called parties. The screen share user interface control is configured to enable the calling party and the one or more called parties to establish a screen share session.