Usual Way when you’re making a call:
Dial the number
Place the phone to your ear to wait for person on the other line to answer.
Talk when connected

With FreeCallSprite:
Dial the number, hold phone on your hand.
Phone will vibrate awaiting for person on the other line to pick up.
Phone stop vibrating when call is connected.
Place phone to ear to talk.

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FreeCallSprite