software to screen numbers in symbian s40

i searched for it previously my phone is Nokia 7210 supernova which is also s40 series but in vain, can't get one Java application to block a caller.

but instead i got bunch of techniques from different forums and sites to accomplish the same.here i am posting links to those forums and sites

*himanshurockat.blogspot.com/2010/05/s40-and-s60-good-trick-to-block.html

*www.zedge.net/forum/t/48028/call-blocker-for-nokia-6233/

but applications are available for s60 series like

f-secure ,blacklist.
hope this may help you