How to change your voice port on yahoo

Here is a tutorial on how to avoid lost voice connection on Yahoo Messenger
Change your port into 8001

Start>> Run>> type in the box "regedit"
>>HKEY_CURRENT_USER>>>Software
>>>Yahoo>>>Click on Pager Folder , you should see the
regskey on the right of panels , there is a DWORD Value call "Port"
<< double click on it >> In the Box Value Data change the
Value into "1f41" >>OK and reboot your Yahoo Messenger