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What does it mean when a phone line is not available?
#1 · October 10, 2023, 8:59 am
This last line no longer available problem arises in the devices that are dual sim. This error means your cellular network is no longer available for making calls.
You can remove this error by your airplane mode settings. Turn on the airplane mode and wait for a few seconds and again turn it off and establish the fresh cellular network, this way you can eliminate this error or bug.
Read more: https://ityug247.com/last-line-no-longer-available-iphone/