Phone Service (PhoneSvc) Defaults in Windows 11

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
File:%SystemRoot%\System32\PhoneService.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PhoneSvc
Privileges:
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege

Default Behavior

Phone Service is a Win32 service. In Windows 11 it starts only if the user, an application or another service starts it. When the Phone Service is started, it logs on as NT Authority\LocalService and running in a shared process of svchost.exe. If Phone Service fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the PhoneSvc service startup failure.

Dependencies

Phone Service cannot be started, if the Remote Procedure Call (RPC) service won't start.

Restore Default Startup Configuration of 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 C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.