Tom Sh, we want to ensure you're able to stay connected on calls with the other line on your plan. It definitely seems odd that the calls drop at the beginning of every connection made. Does the iPhone X user have any similar issues with calls other than yourself? Where do you experience these problems on calls with the other line? Is there a zip code you can provide?
Please use the links provided to check on your Advanced Calling settings to ensure both devices have the feature enabled. http://spr.ly/6585DVrqX
http://spr.ly/6588DVrqw
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