Last line no longer available error.

This is a documented problem with the iPhone Xs (see the links below). It occurs randomly, after you make a phone call. The next call you make gives you the message (below). It's been posted for months. Apparently, the only "solution" is to delete your entire recent calls list. That's not a solution, that's a BAD work-around. And it can recur.

When is Apple going to do something about it? Can we hear from Apple on this?

How to Fix iPhone Last Line no Longer Available Error

https :// discussions.apple. com/search?q= last+line+ no+longer+available for more help Last line no longer available - Apple Community

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