Deja
News RAS 633 Solutions 
This issue can
also occur if the Telephon.ini file is missing or damaged.
Solution:
To resolve this issue,
follow these steps:
1.Click Start, point
to Find, and then click Files Or Folders.
2.In the Named box,
type "telephon.ini" (without quotation marks), and then click find
now.
3.If you do not find
the Telephon.ini file, skip to step 4. If you do find the Telephon.ini
file, right-click it, click Rename, type "telephon.old" (without quotation
marks), and then press ENTER.
4.Quit the Find tool,
click Start, click Run, type "tapiini.exe" (without quotation marks),
and then press ENTER.
5.Restart your computer.