Is there a sound of a skt call in kt or LG?

pu1. It's a Tring service at SK Telecom. It is a service that allows you to know that the other company's carrier is SKT through the Tiring service. Since it is SK Telecom service, it is not available at KT or LG U+

2017-12-27

OK

pu2. Not at KT Olleh or LG U+

2017-12-27

OK

pu4. I don't want to hear the ding ding ding ding sound. I feel like I have to stop listening to the commercial

2017-12-27

OK