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+---
+layout: page
+title: Spectrum 2
+---
+
+## Spectrum 2 frontends and backends
+
+Spectrum 2 supports multiple IM networks. Spectrum 2 distinguishes between **Frontend** and **Backend** networks.
+
+If some network is supported as **Frontend**, it means that Spectrum 2 allows its users to use this network to communicate with other users using the **backend** network.
+
+#### Example
+
+If you for example use **Slack** as a frontend and **IRC** as a backend, the Spectrum 2 users can add Spectrum 2 to their Slack team, join the IRC network and communicate with their friends on IRC network.
+
+This page contains the list of currently supported frontends with the basic information about them.
+
+### How to change frontends
+
+Frontends are switched in Spectrum 2 config file using the following option:
+
+Section| Option| Value
+-------|-------|------
+service|frontend|Name of the frontend.
+
+### List of frontends
+
+Name| Supported network
+----|-------------------
+`xmpp`| XMPP (Jabber)
+`slack`| Slack