Systems, methods, and software are disclosed herein for enhancing ad-hoc online meetings. In an implementation, a service client receives an initial handoff of an online session from an initial service client that was ongoing between the initial service client and at least one other service client. The service client detects when proximate to an in-room service client. When proximate to the in-room service client, the service client initiate a subsequent handoff of the online session to the in-room service client.