diff --git a/src/__mocks__/mockData.js b/src/__mocks__/mockData.js
index caed815..1bacd29 100644
--- a/src/__mocks__/mockData.js
+++ b/src/__mocks__/mockData.js
@@ -87,6 +87,7 @@ const MOCK_SESSION = {
 };
 
 const MOCK_SIGNAL = {
+  to: 'to-specific-user',
   type: 'foo',
   data: JSON.stringify({
     foo: 'bar',
diff --git a/src/index.js b/src/index.js
index 4e1ab11..da65f97 100644
--- a/src/index.js
+++ b/src/index.js
@@ -191,15 +191,15 @@ const useOpenTok = () => {
   );
 
   const sendSignal = useCallback(
-    ({ type, data, completionHandler }) => {
+    ({ type, data, to, completionHandler }) => {
       if (!isSessionConnected) {
         throw new Error('[ReactUseOpenTok] sendSignal: Session is not connected');
       }
 
-      let signal = { data };
-
-      if (typeof type === 'string' && type.length > 0) {
-        signal.type = type;
+      let signal = {
+        data,
+        ...type && { type },
+        ...to && { to },
       }
 
       session.signal(signal, error => {
diff --git a/src/index.test.js b/src/index.test.js
index 0eee183..5b3be90 100644
--- a/src/index.test.js
+++ b/src/index.test.js
@@ -44,7 +44,12 @@ describe('session initialization and connection', () => {
       expect(error).toMatch(/token/);
     }
 
-    await act(() => opentokMethods.connectSession(MOCK_CREDENTIALS.token, opentokProps.session));
+    await act(() =>
+      opentokMethods.connectSession(
+        MOCK_CREDENTIALS.token,
+        opentokProps.session
+      )
+    );
     [opentokProps, opentokMethods] = result.current;
     expect(opentokProps.isSessionConnected).toBeTruthy();
     expect(opentokProps.connectionId).toEqual(expect.any(String));
@@ -82,7 +87,12 @@ describe('session methods after initialization', () => {
       connectionId: undefined,
     });
 
-    await act(() => opentokMethods.connectSession(MOCK_CREDENTIALS.token, opentokProps.session));
+    await act(() =>
+      opentokMethods.connectSession(
+        MOCK_CREDENTIALS.token,
+        opentokProps.session
+      )
+    );
     [opentokProps, opentokMethods] = result.current;
     expect(opentokProps).toMatchObject({
       isSessionConnected: true,
@@ -180,12 +190,14 @@ describe('session methods after initialization', () => {
     const stream = opentokProps.publisher[name].stream;
 
     // subscribe
-    act(() =>
+    act(() => {
       opentokMethods.subscribe({
         stream,
         element: 'subscriber',
-      })
-    );
+      });
+      return undefined;
+    });
+
     [opentokProps, opentokMethods] = result.current;
 
     expect(opentokProps.subscribers.length).toBe(1);
@@ -200,7 +212,7 @@ describe('session methods after initialization', () => {
     expect(opentokProps.subscribers.length).toBe(0);
   });
 
-  it('sendSignal', async () => {
+  it('sendSignal with to and type', async () => {
     const { result } = renderHook(() => reactUseOpentok());
     let [opentokProps, opentokMethods] = result.current;
     expect(() => act(() => opentokMethods.sendSignal(MOCK_SIGNAL))).toThrow();
@@ -208,7 +220,12 @@ describe('session methods after initialization', () => {
     await act(() => opentokMethods.initSession(MOCK_CREDENTIALS));
     [opentokProps, opentokMethods] = result.current;
 
-    await act(() => opentokMethods.connectSession(MOCK_CREDENTIALS.token, opentokProps.session));
+    await act(() =>
+      opentokMethods.connectSession(
+        MOCK_CREDENTIALS.token,
+        opentokProps.session
+      )
+    );
     [opentokProps, opentokMethods] = result.current;
 
     // register signal event
@@ -224,6 +241,42 @@ describe('session methods after initialization', () => {
     expect(handleSignal).toHaveBeenCalledWith({
       type: MOCK_SIGNAL.type,
       data: MOCK_SIGNAL.data,
+      to: MOCK_SIGNAL.to,
+    });
+  });
+
+  it('sendSignal without to and type', async () => {
+    const { result } = renderHook(() => reactUseOpentok());
+    let [opentokProps, opentokMethods] = result.current;
+    const { to, type, ...mockSignalWithoutTypeAndTo } = MOCK_SIGNAL;
+
+    expect(() =>
+      act(() => opentokMethods.sendSignal(mockSignalWithoutTypeAndTo))
+    ).toThrow();
+
+    await act(() => opentokMethods.initSession(MOCK_CREDENTIALS));
+    [opentokProps, opentokMethods] = result.current;
+
+    await act(() =>
+      opentokMethods.connectSession(
+        MOCK_CREDENTIALS.token,
+        opentokProps.session
+      )
+    );
+    [opentokProps, opentokMethods] = result.current;
+
+    // register signal event
+    const handleSignal = jest.fn(e => e);
+    act(() => opentokProps.session.on('signal', handleSignal));
+    expect(handleSignal).not.toHaveBeenCalled();
+
+    // dispatch signal event
+    [opentokProps, opentokMethods] = result.current;
+    act(() => opentokMethods.sendSignal(mockSignalWithoutTypeAndTo));
+
+    expect(handleSignal).toHaveBeenCalledTimes(1);
+    expect(handleSignal).toHaveBeenCalledWith({
+      data: MOCK_SIGNAL.data,
     });
   });
 });