1. In case of busy transfer: the mobile phone dials "**67* phone number #";
2. No answer transfer: the mobile phone dials "**6 1* phone number #";
3. Unable to transfer: the mobile phone dials "**62* phone number #";
4. Unconditional dialing: the mobile phone dials "**2 1* phone number #";
Tips:
1. If the "telephone number" in the setting description is a fixed telephone, the area code should be added before it;
2. There will be a prompt on the screen after the setting is successful.