Situations arise where you need calls from a contact to go to Voicemail instead of answering their calls. You can set your Nexus One to send calls from a contact to voicemail automatically and directly, so that your phone will never ring when they call.
1. Open your Contacts.
2. Select the name of the desired contact.
3. Select the Menu key.
4. Select Options.
5. Check the Incoming calls checkbox.
When you are ready to once again receiver their calls, simply repeat the above steps and uncheck the Incoming calls checkbox.
