How to check whether the other party's mobile phone is down?

1. Making a phone call is not an ideal way. If the other party has set up call forwarding and the call is forwarded to a stopped number.

When you call the other party's telephone system, you will still be prompted that "the number you dialed has stopped", but the other party has not stopped at this time.

2. It is suggested that you can send a short message to the other party and start the information report at the same time.

If the information report status normally shows "Delivered", it means that there is no downtime.

This is the only way to solve the problem when you don't know the service password of the other party and don't want to call.