Below you can find the China Telecom 4G LTE 5G APN Settings Procedure for iPhone 12, iPhone 12 Pro, SE, 11 and iPad
China Telecom APN Settings for iPhone
From the main menu, tap Settings -> Cellular -> Cellular Data Network -> APN. and enter the following details
Cellular Data:
APN: ctnet
Username: ctwap@mycdma.cn
Password: vnet.mobi
MMS:
APN: ctnet
Username: ctwap@mycdma.cn
Password: vnet.mobi
MMSC: http://mmsc.vnet.mobi
MMS Proxy: 10.0.0.200
MMS Message Size: 1048576
MMS UA Prof URL: blank