Abstract: A communication device for transmitting/acquiring a phone number via a link network and method thereof are provided. In an embodiment, two communication devices are linked together via a link network to directly transfer a phone number stored in a communication device to the other via the link network. Further, the communication device receiving the phone number, can make a comparison according to a decision table to determine whether it is a diallable phone number, thereby providing a dial function or an edit confirm option for the received the phone number. In this case, the decision table has multiple identification numbers and their corresponding number counts.

Abstract: A communication device for transmitting/acquiring a phone number via a link network and method thereof are provided. In an embodiment, two communication devices are linked together via a link network to directly transfer a phone number stored in a communication device to the other via the link network. Further, the communication device receiving the phone number, can make a comparison according to a decision table to determine whether it is a diallable phone number, thereby providing a dial function or an edit confirm option for the received the phone number. In this case, the decision table has multiple identification numbers and their corresponding number counts.

Abstract: Disclosed is an apparatus and method for prevention of interferences from speech sounds in telephony. The apparatus comprises a cipher generation unit, an automatic speech sound sending digital processor and an incoming call filter unit. When a receiver receives an incoming call from a sender, a cipher is generated. Next, the receiver sends a speech sounded cipher to the sender based on the generated cipher. Responsive to the speech sounded cipher, the sender inputs a response cipher with reference to the speech sounded cipher. Finally, the inputted cipher and the cipher generated at the receiver end are compared, so that the receiver may determine if the incoming call is a voice-over-internet protocol (VOIP) SPAM and should be answered.