Summon offers a chat integration as part of a larger suite of features to provide contextual research assistance in the Summon Discovery Service. Within Summon Suggestions, "embedded chat and reference widgets allow users to receive real-time help from reference staff without leaving the Summon user interface. Libraries can seamlessly integrate and customize chat and reference widgets in the Summon environment with easy to use administration tools."
To learn more, check out the Summon documentation. Your Queue ID depends on the region on which your LibraryH3lp subscription resides.
And if you run into any snags, the fine folks at Serials Solutions® customer support are available to help.