Recently, I've been receiving quite a few %$#@% nuisance calls at home from 3072151002 shown by my caller ID.
Googled the number and I can see quite a lot of hits.
So I called up SH and requested them to block that number... and guess what...
They can't block specific incoming numbers, the only option I have is to disable ALL incoming calls. I asked further, being concerned about billed for nuisance international calls, that fella told me if it's incoming calls, even International calls are FREE.
Juz sharing, can't do much... cuz the Caller ID is spoofed anyway.