Best way to avoid Spam Call and Email
Often we receive disturbing calls or sometime we do not like to get call from unknown caller. Some telecom corporations and specially some Chinese mobile set manufacturer provide the option of 'call block service', which blocks incoming calls from some specific numbers. Users need to list the numbers in blacklist. But how many numbers we can list there? It does not fulfill our demand. Only if they provide 'Call Filter' service, then it will be a more effective solution.