If a caller enters an extension in the auto attendant or finds a name in the directory handler, the caller is sent directly to the greeting for that user, and the extension does not ring. Personal Transfer Rules do not take effect when the Opening Greeting is called and the extension of a subscriber is entered.
This issue is documented in Cisco bug ID CSCse44536.
Complete these steps as one possible workaround for this issue:
Run the Call Transfer Rule Tester.
Verify that Rule is active.
Verify that the Ask me if I want to take the call option is unchecked.
In order to resolve this issue, upgrade to one of these Cisco Unity Connection versions: