Hi in nokia phones we have the option to set a screened list or add certain contacts to silent list or no tone when they calls.but this is not possible in sony ericsson mobile phones.so we have an trick to enable this in sony ericcson mobiles.follow the below steps
Step-1: Download The Silent Tone Here
Step-2: Then Send it to your mobile
Step-3: Lookup this tone in your sounds folder
Step-4 Now Select More > Use As > Contact Tone > Now Select The Contact As You Wish to Put Silent > Save Thats all now You Are Done
now whenever that person calls your mobile will be silent without ringing
