Usage requirements of Unicom number change notification service

Can't use it. First of all, I will give you a detailed introduction to Guangdong Unicom's "notification of number change" business. "Notification of number change" means that the calling user dials the old number of the called user, and the old number must be set to transfer the call to the new number, that is, when the call is transferred to the new phone number with customized notification of number change, the ring tone of the called new number will be triggered, and during the call, the called new number will automatically send SMS notification to the calling user to change the address book in time.

Simply put, it is to open a number change notification service for the new number. This applies to Guangdong Unicom's ringtone mobile phone users. Of course, electrical signals can't open this service. You can ask the customer service of Telecom to see if there is a similar service available, but first you have to transfer the old number to the new one. Call forwarding will charge you the call forwarding fee for connecting the old number. If it is roaming, there will be roaming call charges, depending on the package tariff standard.