What is the secret code *# 21?
The USSD code *#21# is used to check if call forwarding is enabled on your phone. However, the “number cannot be completed as dialed” message typically indicates that the USSD code is not recognized by your network provider or your phone.Jul 17, 2020
The USSD code *#21# is used to check if call forwarding is enabled on your phone. However, the “number cannot be completed as dialed” message typically indicates that the USSD code is not recognized by your network provider or your phone.Jul 17, 2020