Telephony - Windows 10 Service
Provides Telephony API (TAPI) support for programs that control telephony devices on the local computer and, through the LAN, on servers that are also running the service.
This service also exists in Windows 11, 8, Vista and XP.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Manual | Manual | Manual | Manual |
| 1511 | Manual | Manual | Manual | Manual |
| 1607 | Manual | Manual | Manual | Manual |
| 1703 | Manual | Manual | Manual | Manual |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | Manual | Manual | Manual | Manual |
| 1809 | Manual | Manual | Manual | Manual |
| 1903 | Manual | Manual | Manual | Manual |
| 1909 | Manual | Manual | Manual | Manual |
| 2004 | Manual | Manual | Manual | Manual |
| 20H2 | Manual | Manual | Manual | Manual |
| 21H1 | Manual | Manual | Manual | Manual |
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | Telephony |
| Service name: | tapisrv |
| Type: | share |
| Path: | %WinDir%\System32\svchost.exe -k NetworkService -p |
| File: | %WinDir%\System32\tapisrv.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\NetworkService |
| Privileges: |
|
Default Behavior
The Telephony service is running as NT AUTHORITY\NetworkService in a shared process of svchost.exe. Other services might run in the same process. If Telephony fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the tapisrv service has failed to start.
Dependencies
Telephony is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.
If Telephony is stopped, the Fax service fails to start and initialize.
Restore Default Startup Type of Telephony
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreTelephonyWindows10.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the tapisrv.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.