As you are able to sign into Airhead with multiple identity providers, we offer the choice at sign in (Google/Facebook/Microsoft/Groupcall IDaaS). Many of our users will typically use one particular identity provider to access Airhead and therefore do not need to be offered that choice. You can now grab your direct Airhead login link from your personal settings menu. Using this link will take you straight to your identity provider and, once you have entered your username and password, straight into Airhead.
You can even use our bookmarklet feature to drag the link into your bookmarks:
Full details and instructions are here.