Dual e-sim can only text on WiFi on iPhone 13 Pro

[Bunnyb58]

I added a second line to my iPhone to have a local area code after moving. I can only text if on WiFi, which is bad for a business phone number. Haven’t checked if I receive calls on LTE, but can’t figure out why I can only text from the new number on WiFi. I just spent almost FOUR hours on with Verizon yesterday for unrelated issues so I’m not inclined to do that again, if ever. Anyone got ideas? 
both eSIMs are on and “Allow cellular data switching” is checked on but the Personal line has been selected. 

[vzw_customer_support]

We're sorry to hear about the issues you're running into with your dual SIM device, Bunnyb58. We'd love to help you figure out what's going on. Please tell us, what steps did you follow when adding the second line? To clarify, are both lines Verizon numbers?

~Izzy

[SynthpopAddict · Accepted solution]

Don't know if this article will help, but worth a shot?

https://support.apple.com/en-us/109317

An interesting tidbit I saw there was if the first eSIM is through a CDMA network (i.e., Verizon, as they're the only CDMA network), the second eSIM will not support CDMA.  Plain old texting is actually a very old technology which has been tacked onto all newer cellular generation technologies because everyone relies on texting, but the having to backdate or whatever the process is called to get texting to be compatible with current wireless tech - stuff can go wrong.  It's like trying to get software designed to run with Windows XP to work on Windows 11.