The phone prompt tone is: the other party has opened the call reminder service, and the phone you dialed will be sent to the mobile phone in the form of SMS. What happened?

1 The called party has set up a "call reminder" service, which is provided by the operator. After this service is set, when the called party is turned off or out of service area, and can't answer the phone (which can be set in the call reminder service), the incoming call will automatically go to the "call reminder" platform, which is equivalent to the called party's call transfer, so the caller hears the ring back tone given by the "call reminder" platform, and the other party has turned on the call reminder.

When the owner shuts down or the line is busy, a phone call cannot come in. Then the telecom operator will send the content short message to the owner after the owner is turned on or idle: when did the number call?

1, customer settings? Call reminder cannot be used in call forwarding. After canceling the call forwarding settings, you can use call reminders.

2. After the call reminder is turned on, when the mobile phone is turned off or out of service area, the message a friend hears when making a call is "Call reminder reminds you that the subscriber you dialed can't be connected for the time being, thank you for using it, please hang up", and he doesn't need to pay for it.

3. The short message recording the incoming call information is kept in the system for 24 hours.