Hi and welcome to JustAnswer,
Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back with the complete model number of the phones. Additionally, who is your phone service provider please? Have you tried bringing this concern to their attention?
Sorry as it would appear that you are trying to reach AT&T.
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Would you still like to continue?
Appreciate the post back and your kind understanding.
Good luck with your concerns.