An audio communication device is provided suitable for conducting audio communication including paired half duplex audio communications. The device includes a processor and associated memory with a codec connected to the processor. A TCP/IP operating system may be running on the processor. At least one audio transducer and audio circuit may be connected to the codec and/or processor. The device may establish a connection with a remote device on power-up or reset and is responsive to a trigger to transmit data representative of an audio input to a remote device. The intercom device or audio terminal may also receive and convert data from a remote device to an audio output. Advantageously, the audio terminal device may have a TCP/IP client/server connection with the remote device.