Hi. Thanks for the comment! It doesn't show any message that indicates that a user is using texting over Wi-Fi calling. I've only seen an indicator when you make phone calls over Wi-Fi calling. An iPhone will show "Name of carrier Wi-Fi calling." On Android it will show "Wi-Fi call" and a small wi-fi icon.
Hi. Thanks for the comment! You should be able to add a different address for each line. I use to have a family plan on T-Mobile and one of my family member had a different address for Wi-Fi calling.
