[saqer]

if u're ambitious enough u can try/buy an app for windows mobile called magicall. It's call screening program that allows screening of ingoing and outgoing calls. You have to learn the syntax but basically u can make a rule that certain dialed outgoing numbers are prepended with *67. For example, you can set the filter for outgoing numbers with a certain area code, specific contacts, numbers not in contact list, categories/groups, etc. It's really powerful and can be used for other things as well.