diff --git a/briar-core/src/net/sf/briar/plugins/modem/ModemPlugin.java b/briar-core/src/net/sf/briar/plugins/modem/ModemPlugin.java
index 3e675ccf155102cb3965cadbc9a59b91917256f5..caa6fb2d156c288ca8764931b05adfce92345509 100644
--- a/briar-core/src/net/sf/briar/plugins/modem/ModemPlugin.java
+++ b/briar-core/src/net/sf/briar/plugins/modem/ModemPlugin.java
@@ -68,6 +68,8 @@ class ModemPlugin implements DuplexPlugin, Modem.Callback {
 
 	public boolean start() {
 		for(String portName : SerialPortList.getPortNames()) {
+			if(LOG.isLoggable(INFO))
+				LOG.info("Trying to initialise modem on " + portName);
 			modem = modemFactory.createModem(this, portName);
 			try {
 				modem.init();
diff --git a/briar-tests/src/net/sf/briar/plugins/modem/ModemClientTest.java b/briar-tests/src/net/sf/briar/plugins/modem/ModemClientTest.java
index d4daf1f8ba812635cd57572eaeba587370f0f272..2d3bd77840e9ed6063a05fd3d53f3dfbf9f69b6c 100644
--- a/briar-tests/src/net/sf/briar/plugins/modem/ModemClientTest.java
+++ b/briar-tests/src/net/sf/briar/plugins/modem/ModemClientTest.java
@@ -1,10 +1,13 @@
 package net.sf.briar.plugins.modem;
 
+import static java.util.logging.Level.INFO;
+
 import java.util.Collections;
 import java.util.Map;
 import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.logging.Logger;
 
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.TransportConfig;
@@ -33,6 +36,7 @@ public class ModemClientTest extends DuplexClientTest {
 			System.err.println("Please specify the server's phone number");
 			System.exit(1);
 		}
+		Logger.getLogger("net.sf.briar").setLevel(INFO);
 		ExecutorService executor = Executors.newCachedThreadPool();
 		try {
 			new ModemClientTest(executor, args[0]).run();
diff --git a/briar-tests/src/net/sf/briar/plugins/modem/ModemServerTest.java b/briar-tests/src/net/sf/briar/plugins/modem/ModemServerTest.java
index ca572de126358b2bb05f2f1fe19daa15cdcddaeb..437e9deea5caac36085e459c2d0355c1ec7e40c3 100644
--- a/briar-tests/src/net/sf/briar/plugins/modem/ModemServerTest.java
+++ b/briar-tests/src/net/sf/briar/plugins/modem/ModemServerTest.java
@@ -1,9 +1,12 @@
 package net.sf.briar.plugins.modem;
 
+import static java.util.logging.Level.INFO;
+
 import java.util.Collections;
 import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.logging.Logger;
 
 import net.sf.briar.api.TransportConfig;
 import net.sf.briar.api.TransportProperties;
@@ -23,6 +26,7 @@ public class ModemServerTest extends DuplexServerTest {
 	}
 
 	public static void main(String[] args) throws Exception {
+		Logger.getLogger("net.sf.briar").setLevel(INFO);
 		ExecutorService executor = Executors.newCachedThreadPool();
 		try {
 			new ModemServerTest(executor).run();