Notes about the TCS file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The TCS file type is primarily associated with 'TOPCALL Voicemail Player' by TOPCALL. Gives access to .WAV-formatted audio-files directly in your mailbox.