diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ed8b864
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+################################################################################
+# This .gitignore file was automatically created by Microsoft(R) Visual Studio.
+################################################################################
+
+/.vs
+/out
+/temp
diff --git a/src/commands.cpp b/src/commands.cpp
index 0a40a57..8bad6ac 100644
--- a/src/commands.cpp
+++ b/src/commands.cpp
@@ -21,9 +21,11 @@
 #include <string>
 #include <vector>
 #include <sstream>
+#include <thread>
 #include <cstring>
 #include <ctime>
 #include <cassert>
+#include <chrono>
 
 #include "commands.h"
 #include "state.h"
@@ -497,7 +499,7 @@ bool Wait::RunCommand(const std::string &loopsuffix) {
       return true;
     }
     //cout << "Wait: usleep " << n << endl;
-    usleep(WAIT_SLEEP_ACCURACY * 1000);
+    std::this_thread::sleep_for(std::chrono::duration<int, std::milli>(WAIT_SLEEP_ACCURACY));
     if(!closed
         &&  TPState::Instance().GetState() == TPState::TERMINATED) {
       errorstring = "Wait: application terminated";
diff --git a/src/main.cpp b/src/main.cpp
index 2b63bce..c8367b1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -20,6 +20,8 @@
 
 #include <iostream>
 #include <sstream>
+#include <chrono>
+#include <thread>
 #include <signal.h>
 #include "main.h"
 #include "commands.h"
@@ -459,10 +461,8 @@ bool Manager::SendDTMF(const PString &dtmf)
                 // sleep a while
                 std::cout << "sent DTMF: [" << dtmf[i] << "]"  << std::endl;
 
-                struct timespec tp;
-                tp.tv_sec = 0;
-                tp.tv_nsec = 500 * 1000 * 1000; // half a second
-                nanosleep (&tp, 0);
+                using namespace std::chrono_literals;
+                std::this_thread::sleep_for(500ms);
             }
         }
         ok = (i == dtmf.GetSize() - 1 ? true : false);