What should I do if there is no ring-back tone, CRBT, or beep tone when I make a call?
Applicable products：
Tablet，Smartphone
Applicable system:
Unrelated to OS version
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| What should I do if there is no ring-back tone, CRBT, or beep tone when I make a call? |
Problem:
When a subscriber makes a call, he or she does not hear the CRBT, ring-back tone, or beep tone before the call is connected.
Cause:
The ring-back tone of the call is delivered by the network provider's network. If the ring-back tone (including the CRBT) is not heard during the call, the issue is caused by the network provider's network.
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