What does Ground-key means in telepone systerm?

Zhaoviolin ∙

Lvl 1

∙ 13y ago

Updated: 8/20/2019

Ground means a connection to earth potential in telephony.

So, probably a Ground -key is the button used to momentarily switch the ground into the circuit to call the other end. This may be to alert the operator or request dial tone. Could be a CALL or RING key.

Wiki User

∙ 13y ago

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