It's a phone! Dial it with your wrench. Growtopia doesn't have any cell service, so you're stuck with this old thing.
Telephone price in Growtopia: sells for about 2 WL, buyers pay about 2/WL (median of 870 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: KOREGI, RIKNN, AITIC, 7S5D, WARHUNK