A system and method for transmitting aural signals across a wide area network (WAN) from a local phone coupled to a computer, e.g., a PC-phone, to a remote phone coupled to a KTS, PBX, or PSTN, for example. This capability is provided by the gateway unit of the present invention. The system of the present...http://www.google.com.au/patents/US5940479?utm_source=gb-gplus-sharePatent US5940479 - System and method for transmitting aural information between a computer and telephone equipment
