diff --git a/spectrum/src/sample2.cfg b/spectrum/src/sample2.cfg
index ae1f0d73d2e79766a92c2c348984b691c8b79e77..3181a6a1ee29f4170d4f9d7182a983cf43350314 100644
--- a/spectrum/src/sample2.cfg
+++ b/spectrum/src/sample2.cfg
@@ -24,7 +24,9 @@ port = 5222
 backend_host = localhost
 
 # Port on which Spectrum listens for backends.
-backend_port=10001
+# By default Spectrum chooses random backend port and there's
+# no need to change it normally
+#backend_port=10001
 
 # Full path to PKCS#12 cetficiate used for TLS in server mode.
 #cert=
@@ -38,6 +40,8 @@ users_per_backend=10
 # Full path to backend binary.
 backend=/usr/bin/spectrum2_libpurple_backend
 #backend=/usr/bin/spectrum2_libircclient-qt_backend
+# For skype:
+#backend=/usr/bin/xvfb-run -n BACKEND_ID -s "-screen 0 10x10x8" -f /tmp/x-skype-gw /usr/bin/spectrum2_skype_backend
 
 # Libpurple protocol-id for spectrum_libpurple_backend
 protocol=prpl-jabber
@@ -69,11 +73,11 @@ backend_config = /etc/spectrum2/backend-logging.cfg
 
 [database]
 # Database backend type
-# "sqlite3", "mysql" or "none" without database backend
+# "sqlite3", "mysql", "pqxx", or "none" without database backend
 type = none
 
 # For SQLite3: Full path to database
-# For MySQL: name of database
+# For MySQL and PostgreSQL: name of database
 # default database = /var/lib/spectrum2/$jid/database.sql
 #database = jabber_transport
 
@@ -91,3 +95,20 @@ type = none
 
 # Prefix used for tables
 #prefix = jabber_
+
+[registration]
+# Enable public registrations
+enable_public_registration=1
+
+# Text to display upon user registration form
+#username_label=Jabber JID (e.g. user@server.tld):
+#instructions=Enter your remote jabber JID and password as well as your local username and password
+
+# If True a local jabber account on <local_account_server> is needed 
+# for transport registration, the idea is to enable public registration
+# from other servers, but only for users, who have already local accounts
+#require_local_account=1
+#local_username_label=Local username (without @server.tld):
+#local_account_server=localhost
+#local_account_server_timeout=10000
+