>>>>>>>>>>>>>>> I tried Internet Phone (http://vocaltec.com) last night, and it works fine on a 755CSE with the mwave audio. I wasn't sure whether the mwave audio was full or half-duplex, so I tried both flavors of the program. It's half-duplex. David <<<<<<<<<<<<<<< Were you Telecommunicating or useing a real time on-line network service? How was the response time, and quality?