In the Real Time application of smartocto you see the main traffic drivers for your stories. On the story page, and in the dashboard tooling Waves, you can see the set up channels like web: direct, newsletter and social channels as Facebook and Instagram. And there is also a channel called Other.
The label Other channel combines all traffic which is not classified as one of the shown channels. For example if domain.org sends traffic, and domain.org is not labeled as a specific channel, then that traffic is covered by the channel Other.
If a channel becomes big enough to show as a separate traffic source, please contact support to set the channels.