| [arrived-activity](help/database/db_arrived-activity) | Id of arrived activities |
| [attach](help/database/db_attach) | file attachments |
| [cache](help/database/db_cache) | Stores temporary data |
+| [channel](help/database/db_channel) | User defined Channels |
+| [check-full-text-search](help/database/db_check-full-text-search) | Check for a full text search match in user defined channels before storing the message in the system |
| [config](help/database/db_config) | main configuration storage |
| [contact](help/database/db_contact) | contact table |
| [contact-relation](help/database/db_contact-relation) | Contact relations |