How does telephone conferencing work?
Telephone conference calling allows people to communicate from different locations via a shared conference line connection. There are dozens of services that provide the conferencing feature for no or low cost.Three-Way CallsThree-way calling features are available on home phone services and can be pre-installed on phone systems. The caller places a call to the first person, tells that party that he will add a second person then puts the first person on hold by either hitting the flash hook or for a business placing them on hold and pressing the conference call feature button. When a dial tone is heard the second person is called, the caller advises the second person to wait while he flash hooks to connect the first person on the personal line, or presses the conference button again and then the held call.Party LinesConference calls today are a version of the old party lines. Party lines were popular prior to World War II, when several residential, mostly rural subscribers, would share
