Smartphone users in India take note. The way Android phone and iPhone users manage call forwarding on their phones is about to change. The Department of Telecom (DoT) has ordered telecom companies to stop using USSD codes (like *401#) to activate call forwarding features.This change takes effect from April 15, 2024.USSD codes are those short codes that mobile users dial on their phone to access various services, like checking balance or phone’s IMEI number,