Joke Collection Website - Public benefit messages - Turn off 4g HD by SMS.
Turn off 4g HD by SMS.
The steps are as follows:
1, send "TDVOLTE" to 100 10, and confirm y.
2. China Unicom APP Service-Handling -VoLTE HD Call Handling-Basic Business Handling -VoLTE HD Call Closing.
3. The business hall or call 100 10 customer service hotline to cancel.
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