To see if the phone your using is dual–SIM, go into your phone’s Settings app. Tap on Network and internet. The SIM cards option should be right below Airplane mode. If you see that the option shows you two slots for a SIM card, your phone is Dual–SIM.
When you call a dead phone does it ring?
Answer: A: With a dead battery it should not ring but it should go to voicemail directly.