GBlocker is one of the popular call software for Android can block unwanted incoming calls.
1.Block unwanted calls by #
2.block unknown #s(callers with no # display)
3.block not in Contacts
4.block a range of #s,such as 1800XXX
5.block calls & send a msg to blocked #(you can set different text for each number)
6.password protect
GBlocker was developed for Android by Guardam
Package name : com.guardam.blocker.apk
Download GBlocker Android apk V1.3.2:
http://www.mediafire.com/?1zn2zy2t2my