diff --git a/src/main/c/Android/jni/SerialPort_Android.c b/src/main/c/Android/jni/SerialPort_Android.c
index 5ba2b2c..e2a95f1 100644
--- a/src/main/c/Android/jni/SerialPort_Android.c
+++ b/src/main/c/Android/jni/SerialPort_Android.c
@@ -575,4 +575,20 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_clearDTR(JNI
 	return (ioctl(serialPortFD, TIOCMBIC, &modemBits) == 0);
 }
 
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCTS(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_CTS);
+}
+
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getDSR(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_LE);
+}
+
 #endif
diff --git a/src/main/c/Linux/SerialPort_Linux.c b/src/main/c/Linux/SerialPort_Linux.c
index 1c16f23..a92c9b6 100644
--- a/src/main/c/Linux/SerialPort_Linux.c
+++ b/src/main/c/Linux/SerialPort_Linux.c
@@ -534,4 +534,20 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_clearDTR(JNI
 	return (ioctl(serialPortFD, TIOCMBIC, &modemBits) == 0);
 }
 
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCTS(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_CTS);
+}
+
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getDSR(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_LE);
+}
+
 #endif
diff --git a/src/main/c/OSX/SerialPort_OSX.c b/src/main/c/OSX/SerialPort_OSX.c
index 977f3a7..3386871 100644
--- a/src/main/c/OSX/SerialPort_OSX.c
+++ b/src/main/c/OSX/SerialPort_OSX.c
@@ -553,4 +553,20 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_clearDTR(JNI
 	return (ioctl(serialPortFD, TIOCMBIC, &modemBits) == 0);
 }
 
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCTS(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_CTS);
+}
+
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getDSR(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	if (serialPortFD <= 0)
+		return JNI_FALSE;
+	int modemBits = 0;
+	return (ioctl(serialPortFD, TIOCMGET, &modemBits) == 0) && (modemBits & TIOCM_LE);
+}
+
 #endif
diff --git a/src/main/c/Windows/SerialPort_Windows.c b/src/main/c/Windows/SerialPort_Windows.c
index 75513f3..241ccbd 100644
--- a/src/main/c/Windows/SerialPort_Windows.c
+++ b/src/main/c/Windows/SerialPort_Windows.c
@@ -682,4 +682,22 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_clearDTR(JNI
 	return EscapeCommFunction(serialPortHandle, CLRDTR);
 }
 
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCTS(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	HANDLE serialPortHandle = (HANDLE)serialPortFD;
+	if (serialPortHandle == INVALID_HANDLE_VALUE)
+		return JNI_FALSE;
+	DWORD modemStatus = 0;
+	return GetCommModemStatus(serialPortHandle, &modemStatus) && (modemStatus & MS_CTS_ON);
+}
+
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_getDSR(JNIEnv *env, jobject obj, jlong serialPortFD)
+{
+	HANDLE serialPortHandle = (HANDLE)serialPortFD;
+	if (serialPortHandle == INVALID_HANDLE_VALUE)
+		return JNI_FALSE;
+	DWORD modemStatus = 0;
+	return GetCommModemStatus(serialPortHandle, &modemStatus) && (modemStatus & MS_DSR_ON);
+}
+
 #endif
diff --git a/src/main/java/com/fazecast/jSerialComm/SerialPort.java b/src/main/java/com/fazecast/jSerialComm/SerialPort.java
index 9263f92..5804884 100644
--- a/src/main/java/com/fazecast/jSerialComm/SerialPort.java
+++ b/src/main/java/com/fazecast/jSerialComm/SerialPort.java
@@ -456,6 +456,8 @@ public final class SerialPort
 	private final native boolean clearRTS(long portHandle);				// Clear RTS line to 0
 	private final native boolean setDTR(long portHandle);				// Set DTR line to 1
 	private final native boolean clearDTR(long portHandle);				// Clear DTR line to 0
+	private final native boolean getCTS(long portHandle);				// Returns whether the CTS signal is 1
+	private final native boolean getDSR(long portHandle);				// Returns whether the DSR signal is 1
 
 	/**
 	 * Returns the number of bytes available without blocking if {@link #readBytes} were to be called immediately
@@ -540,6 +542,16 @@ public final class SerialPort
 	 */
 	public final boolean clearDTR() { return clearDTR(portHandle); }
 
+	/**
+	 * @return Whether or not the CTS line is asserted.
+	 */
+	public final boolean getCTS() { return getCTS(portHandle); }
+
+	/**
+	 * @return Whether or not the DSR line is asserted.
+	 */
+	public final boolean getDSR() { return getDSR(portHandle); }
+
 	// Default Constructor
 	private SerialPort() {}