Philadelphia Ranked 7th Among Most Cursed Sports Cities In America. PHILADELPHIA - JUNE 09: The Chicago Blackhawks celebrate after defeating the Philadelphia Flyers 4-3 in overtime and win the Stanley Cup in Game Six of the 2010 NHL Stanley Cup Final at the Wachovia Center on June 9, 2010 in Philadelphia, Pennsylvania.
Duplex (telecommunications) - Half duplex. 1  A half-duplex (HDX) system provides communication in both directions, but only one direction at a time (not simultaneously).
If you read the tech specs of IP phones, they will say the phone is âFull Duplex?â What does that mean? Duplex, in telecommunications, means that data can be exchanged in two directions at once. A telephone, of course, is the most obvious example of a full-duplex device, because you can talk and listen at the same time. Full Duplex is in contrast to other methods of transmitting data.