Thank you for reaching out to the Samsung community! We would like to inform you that the data connection during call depends upon the network service provider. If you are using VoLTE SIM and VoLTE is available from the network side you can use data during call. For more information contact network service provider.
Be sure to hit ♡ when you find an answer that works for you. For further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
