Telephone for computer, comprises connection of speaker to first tripolar male plug with parallel switched connections to tripolar female socket also microphone connections to second male plug

摘要

The telephone speaker (12) is connected to a first male tripolar plug using the earth terminal (32) and one stereophonic terminal (28). The two stereophonic terminals of the same plug (28,30) have switched (42) connections to a tripolar female socket (40). The telephone microphone (14) is connected to an earth terminal (22) of a second male plug and also to the two short circuited stereophonic terminals (18,20)