Calls from blacklisted numbers should not send a notification

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Add a phone number to the phone's blacklist
2. Receive a call from said phone number

What is the expected output?
- No notification should be sent for calls from this number.

What do you see instead?
- A notification is sent, even though the phone does not ring.

Additional informations:
My phone has the feature of being able to add phone numbers to a black list, 
which causes the phone to ignore any calls from this number entirely. The phone 
doesn't ring, and the missed call is not displayed. This behavior contrasts 
with gTalkSMS, which still sends a notification regardless of whether or not 
the phone number is on the blacklist.

I don't know if the blacklist feature is provided as part of the stock Android 
OS, or if it's some sort of extra added by the particular ROM I'm using. 
Regardless, it seems like something that could be improved.

This is low priority, since it's more of an annoyance than anything.

Phone model: HTC Magic w/ Chronos Ginger X v2.4.0 (Based on Android 2.3.7)

Original issue reported on code.google.com by [email protected] on 7 Jun 2013 at 6:28