<br/> Please see below for more details:<br/>The application is to allow for filtering unwanted phone calls, SMS messages and Email messages.<br/>Phone Calls Filter:<br/>It shall allow for the following:<br/>1. Reject Calls from a blocked List<br/>2. Reject All Incoming Calls<br/>3. Accept Calls from White List<br/>4. Accept from Address Book Contacts Only<br/>5. A provision to accept or Reject Private/Unknown and Withheld callers<br/>6. A provision on how to reject calls. This can be forward to voice mail or pickup and immediately drop.<br/>Email Filter:<br/>It shall allow for the following:<br/>1. Reject Emails from a blocked List<br/>2. Reject All Incoming Emails<br/>3. Accept Emails from White List<br/>4. Accept Emails from Address Book Contacts Only<br/>SMS Filter:<br/>It shall allow for the following:<br/>1. Reject SMS from a blocked List<br/>2. Reject All Incoming SMS messages<br/>3. Accept SMS from White List<br/>4. Accept SMS from Address Book Contacts Only<br/>More on Administration:<br/>1. The user shall be allowed to add a number to the phone calls Blocked List from the Call Log History<br/>2. On opening an Email Message, the user shall be able to push a menu selection to add the email sender or email sender domain to the Emails Blocked List.<br/>3. The user shall be allowed to allowed to define an email filter to accept or reject by specifying the sender, or sender domain<br/>4. On opening an SMS message, the user shall be allowed to push an SMS sender to the Blocked List<br/>5. The user shall be allowed to build the SMS Blocked List or White List by entering their numbers or Select their names from the Address Book.<br/>6. When a contact is added to the Blocked List All of his number shall be treated the same way.<br/>7. The Blocked List and White List shall display the contact name in its entries and internally it shall build a list of the active numbers or addresses.<br/>8. Only one of the Phone Calls filter can be active at a time. One Email Filter and one SMS filter.<br/>9. When changing the filter, the list of number addresses is generated out of the contact numbers/addresses and individual numbers<br/>10. The phone rejection shall be able to reject a caller if the actively involved with another call<br/>11. A log of rejected calls and SMS messages is to be maintained.<br/>A crude proto-type that will demonstrate the ability to block a phone call, an sms message and an email from a couple of built-in numbers, emails for both the iPhone and the Android.<br/>I can provide java code to build/search and update a prefix tree can be provided to you. This code can be used in searching and building the phone numbers in the active filter.<br/> <br/> <br/>