Methods, systems, and apparatuses are described for implementations of an Internet protocol (IP) communication device (e.g., an IP phone) that contains a firewall. The IP communication device is coupled between a computer system and a network. A data packet is received at a first port of the IP communication device. The data packet is filtered with the firewall included in the IP communication device. The filtered data packet may be transmitted from a second port of the IP communication device (in modified or unmodified form), or may be canceled based on the filtering. In one implementation, the first port is coupled to the network and the second port is coupled to the computer system. In another implementation, the first port is coupled to the computer system and the second port is coupled to the network.