I want to know if there is a way to set and rule for voice traffice e.g. Skype, WLM, Yahoo msn, Voip programs? It would be good if we could set up priority for voice above other traffic.
forget about priority for Skype. it’s encrypted and hidden
Skype preffers UDP which is less enrypted and can be ID:
http://l7-filter.sourceforge.net/layer7-protocols/protocols/skypeout.pat
http://l7-filter.sourceforge.net/layer7-protocols/protocols/skypetoskype.pat
If all else fails then try assigning higher pri to all SSL traffic that is not on port 433 and packet size is between 43-200bytes.