diff --git a/docs/reference/configuration.md b/docs/reference/configuration.md
new file mode 100644
index 0000000..5b1b1f0
--- /dev/null
+++ b/docs/reference/configuration.md
@@ -0,0 +1,60 @@
+# FieldPOC configuration
+
+`fieldpoc.json` is the main configuration file for FieldPOC. It is in JSON format.
+
+## Example config
+
+```
+{
+  "extensions": {
+    "file": "fieldpoc_extensions.json"
+  },
+  "controller": {
+    "host": "127.0.0.1",
+    "port": 9437
+  },
+  "dect": {
+    "host": "10.222.222.11",
+    "username": "omm",
+    "password": "xxx",
+    "sipsecret": "51df84aace052b0e75b8c1da5a6da9e2"
+  },
+  "yate": {
+    "host": "127.0.0.1",
+    "port": 5039
+  },
+  "database": {
+    "hostname": "127.0.0.1",
+    "username": "fieldpoc",
+    "password": "fieldpoc",
+    "database": "fieldpoc"
+  }
+}
+```
+
+## Controller
+
+Configuration for the FieldPOC controller.
+
+- `host`: IP address to listen on for controller socket.
+- `port`: Port to listen on for controller socket.
+
+## DECT
+
+- `host`: IP address of the OMM.
+- `username`: Username of OMM account.
+- `password`: Password of OMM account.
+- `sipsecret`: Secret used to seed DECT SIP account passwords.
+
+## Yate
+
+- `host`: IP address Yate control socket is reachable.
+- `port`: Port yate control socket is reachable.
+
+## Database
+
+- `hostname`: IP address PostgreSQL database is reachable.
+- `username`: Username of the database user.
+- `password`: Password of the database user.
+- `database`: Database name for FieldPOC.
+
diff --git a/mkdocs.yml b/mkdocs.yml
index 57fe036..74bfdcf 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -13,3 +13,5 @@ nav:
     - install/configure.md
     - install/rfp.md
     - install/omm.md
+  - Reference:
+    - reference/configuration.md