how do add IMS APN in iphone
I could not receive SMS , after I landed in China. Service provider asking me to add IMS APN setting
iPhone XS, iOS 17
Settings > Mobile Data > APN [under Mobile Data APN] enter the APN pin --> VoLTE－Manually add the IMS APN
View and edit your APN settings
If your carrier allows it, you can view your APN settings in one of the following locations: Settings > Cellular > Cellular Data Options > Cellular Network. Settings> Mobile Data > Mobile Data Options > Mobile Data Network.
View and edit your Access Point Name (APN) on your iPhone ...