Phone Service (PhoneSvc) Defaults in Windows 10

Manages the telephony state on the device.

Default Settings

Startup type:Manual
Display name:Phone Service
Service name:PhoneSvc
Service type:share
Error control:normal
Object:NT Authority\LocalService
Path:%SystemRoot%\system32\svchost.exe -k LocalService -p
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PhoneSvc
  • SeCreateGlobalPrivilege

Default Behavior

Phone Service is a Win32 service. In Windows 10 it is starting only if the user, an application or another service starts it. When the Phone Service is started, it is running as NT Authority\LocalService in a shared process of svchost.exe along with other services. If Phone Service fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the PhoneSvc service has failed to start due to the error.


Phone Service cannot be started under any conditions, if the Remote Procedure Call (RPC) service is disabled.

Restore Default Startup Configuration for Phone Service

Before you begin doing this, make sure that all the services on which Phone Service depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config PhoneSvc start= demand

3. Close the command window and restart the computer.

The PhoneSvc service is using the PhoneService.dll file that is located in the %WinDir%\System32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.