help :blacklist in phonebook category e770v

[tarong]

hello people, i have manage to add a new category to my phonebook and i want to know how to set it so that it can block calls from members in that category

[Exploited]

assign a silent tone for the specific group, so they don't disturb you..

[tarong]

well thats a great idea but i want the type that will give a busy signal when theu dial my number, thanks anyway

[Exploited]

some operators have this feature. I am sure it's possible on linux phones like E2/E8, etc... where you can write a specific program (daemon) to monitor