Error saying that the last line I used when I was talking on my iPhone is unavailable

I'm using iPhone Xs.

The last used line is no longer available

Do you want to call using the remaining line?

I see this error.

Can't you make it not appear?

I was wondering if anyone knows how to solve it

9995 2018-11-10 Gentleman

popular What is the nationality of Minnie?

popular What is the deadline for purchasing lotto?

popular What are the side effects of oats?

popular How can I resolve TLS security configuration errors?

popular How do I recycle and recycle foil like cooking foil?

Same Tag What application should I use to edit PDF on my iPhone?

Same Tag What kind of music application do you use a lot on your iPhone?

Same Tag Can I buy a used iPhone and plug in the USIM chip that I'm using now?

Same Tag Which Internet browser is good for iPhone?

Same Tag Can I sign up for Kakao Bank with a phone I bought directly from abroad?

Same Time If you choose between Galaxy S9 Plus and Note 8, which one will you choose?

Same Time Error saying that the last line I used when I was talking on my iPhone is unavailable

Same Time How often do you release the Apple Watch?