diff --git a/Freeswitch.2017.sln b/Freeswitch.2017.sln
index 2845b4af6a..1962a9b283 100644
--- a/Freeswitch.2017.sln
+++ b/Freeswitch.2017.sln
@@ -572,6 +572,10 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_mod_av", "src\mod\appl
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_switch_core", "tests\unit\test_switch_core.2017.vcxproj", "{EF62B845-A0CE-44FD-B8E6-475FE87D06C3}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "48khz", "libs\win32\Sound_Files\48khz.2017.vcxproj", "{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "48khz music", "libs\win32\Sound_Files\48khzmusic.2017.vcxproj", "{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		All|Win32 = All|Win32
@@ -1275,6 +1279,7 @@ Global
 		{7EB71250-F002-4ED8-92CA-CA218114537A}.Debug|Win32.ActiveCfg = Debug|Win32
 		{7EB71250-F002-4ED8-92CA-CA218114537A}.Debug|Win32.Build.0 = Debug|Win32
 		{7EB71250-F002-4ED8-92CA-CA218114537A}.Debug|x64.ActiveCfg = Debug|x64
+		{7EB71250-F002-4ED8-92CA-CA218114537A}.Debug|x64.Build.0 = Debug|x64
 		{7EB71250-F002-4ED8-92CA-CA218114537A}.Release|Win32.ActiveCfg = Release|Win32
 		{7EB71250-F002-4ED8-92CA-CA218114537A}.Release|x64.ActiveCfg = Release|x64
 		{464AAB78-5489-4916-BE51-BF8D61822311}.All|Win32.ActiveCfg = Release|Win32
@@ -1282,6 +1287,7 @@ Global
 		{464AAB78-5489-4916-BE51-BF8D61822311}.Debug|Win32.ActiveCfg = Debug|Win32
 		{464AAB78-5489-4916-BE51-BF8D61822311}.Debug|Win32.Build.0 = Debug|Win32
 		{464AAB78-5489-4916-BE51-BF8D61822311}.Debug|x64.ActiveCfg = Debug|x64
+		{464AAB78-5489-4916-BE51-BF8D61822311}.Debug|x64.Build.0 = Debug|x64
 		{464AAB78-5489-4916-BE51-BF8D61822311}.Release|Win32.ActiveCfg = Release|Win32
 		{464AAB78-5489-4916-BE51-BF8D61822311}.Release|x64.ActiveCfg = Release|x64
 		{66444AEE-554C-11DD-A9F0-8C5D56D89593}.All|Win32.ActiveCfg = Release|Win32
@@ -1611,6 +1617,7 @@ Global
 		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Debug|Win32.ActiveCfg = Debug|Win32
 		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Debug|Win32.Build.0 = Debug|Win32
 		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Debug|x64.ActiveCfg = Debug|x64
+		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Debug|x64.Build.0 = Debug|x64
 		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Release|Win32.ActiveCfg = Release|Win32
 		{BA599D0A-4310-4505-91DA-6A6447B3E289}.Release|x64.ActiveCfg = Release|x64
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.All|Win32.ActiveCfg = Release|Win32
@@ -1618,6 +1625,7 @@ Global
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Debug|Win32.ActiveCfg = Debug|Win32
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Debug|Win32.Build.0 = Debug|Win32
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Debug|x64.ActiveCfg = Debug|x64
+		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Debug|x64.Build.0 = Debug|x64
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Release|Win32.ActiveCfg = Release|Win32
 		{EED13FC7-4F81-4E6F-93DB-CDB7DF5CF959}.Release|x64.ActiveCfg = Release|x64
 		{3C977801-FE88-48F2-83D3-FA2EBFF6688E}.All|Win32.ActiveCfg = Release|x64
@@ -2599,6 +2607,26 @@ Global
 		{EF62B845-A0CE-44FD-B8E6-475FE87D06C3}.Debug|x64.ActiveCfg = Debug|x64
 		{EF62B845-A0CE-44FD-B8E6-475FE87D06C3}.Release|Win32.ActiveCfg = Release|Win32
 		{EF62B845-A0CE-44FD-B8E6-475FE87D06C3}.Release|x64.ActiveCfg = Release|x64
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.All|Win32.ActiveCfg = Release|Win32
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.All|Win32.Build.0 = Release|Win32
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.All|x64.ActiveCfg = Release|x64
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.All|x64.Build.0 = Release|x64
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Debug|Win32.Build.0 = Debug|Win32
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Debug|x64.ActiveCfg = Debug|x64
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Debug|x64.Build.0 = Debug|x64
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Release|Win32.ActiveCfg = Release|Win32
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}.Release|x64.ActiveCfg = Release|x64
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.All|Win32.ActiveCfg = Release|Win32
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.All|Win32.Build.0 = Release|Win32
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.All|x64.ActiveCfg = Release|x64
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.All|x64.Build.0 = Release|x64
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Debug|Win32.ActiveCfg = Debug|Win32
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Debug|Win32.Build.0 = Debug|Win32
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Debug|x64.ActiveCfg = Debug|x64
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Debug|x64.Build.0 = Debug|x64
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Release|Win32.ActiveCfg = Release|Win32
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}.Release|x64.ActiveCfg = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -2806,6 +2834,8 @@ Global
 		{BC1FD72E-1CD5-4525-A7F5-17C5740BFDED} = {EB910B0D-F27D-4B62-B67B-DE834C99AC5B}
 		{7926CB0D-62CE-4A09-AE94-1DA2BC92D625} = {9388C266-C3FC-468A-92EF-0CBC35941412}
 		{EF62B845-A0CE-44FD-B8E6-475FE87D06C3} = {9388C266-C3FC-468A-92EF-0CBC35941412}
+		{8154C82D-58EE-4145-9DEC-A445A5AA3D6B} = {4F227C26-768F-46A3-8684-1D08A46FB374}
+		{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31} = {4F227C26-768F-46A3-8684-1D08A46FB374}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {09840DE7-9208-45AA-9667-1A71EE93BD1E}
diff --git a/libs/win32/Sound_Files/48khz.2017.vcxproj b/libs/win32/Sound_Files/48khz.2017.vcxproj
new file mode 100644
index 0000000000..66b65f2584
--- /dev/null
+++ b/libs/win32/Sound_Files/48khz.2017.vcxproj
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>48khz</ProjectName>
+    <RootNamespace>My48khz</RootNamespace>
+    <ProjectGuid>{8154C82D-58EE-4145-9DEC-A445A5AA3D6B}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SoundPrimaryName>en-us-callie</SoundPrimaryName>
+    <SoundQuality>48000</SoundQuality>
+    <ExpectRelative>en\us\callie\voicemail\$(SoundQuality)</ExpectRelative>
+  </PropertyGroup>
+  <PropertyGroup>
+    <IntDir>$(PlatformName)\$(Configuration)\$(ProjectName)\$(SoundQuality)</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <Import Project="..\..\..\w32\download_sounds.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
diff --git a/libs/win32/Sound_Files/48khzmusic.2017.vcxproj b/libs/win32/Sound_Files/48khzmusic.2017.vcxproj
new file mode 100644
index 0000000000..c9eeb07288
--- /dev/null
+++ b/libs/win32/Sound_Files/48khzmusic.2017.vcxproj
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>48khz music</ProjectName>
+    <RootNamespace>My48khzmusic</RootNamespace>
+    <ProjectGuid>{EBD0B6B4-C5CA-46B0-BBC7-DBA71DF05D31}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Utility</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SoundPrimaryName>music</SoundPrimaryName>
+    <SoundQuality>48000</SoundQuality>
+    <ExpectRelative>music\$(SoundQuality)</ExpectRelative>
+  </PropertyGroup>
+  <PropertyGroup>
+    <IntDir>$(PlatformName)\$(Configuration)\$(ProjectName)\$(SoundQuality)</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <Import Project="..\..\..\w32\download_sounds.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>