(February 2013). Push-to-talk (PTT), also known as Press-to-Transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode. CB radio with push-to-talk microphone switch.
Lamar is a town in Darlington County, South Carolina, United States. The population was 1,015 at the 2000 census. It is part of the Florence Metropolitan Statistical Area. Lamar is located at 34Â°10â²13â³N 80Â°3â²45â³W / 34.17028Â°N 80.0625Â°W / 34.17028; -80.0625 (34.170388, -80.062526).
Allendale is a town in Allendale County, South Carolina, United States. The population was 4,052 at the 2000 census. It is the county seat of Allendale County. According to the United States Census Bureau, the town has a total area of 3.3 square miles (8.6 kmÂ²), all of it land. As of the census of 2000, there were 4,052 people, 1,542 households, and 997 families residing in the town.