<![CDATA[<b>]]>**%1$s<![CDATA[</b>]]>**'s app is using an incompatible protocol. They need to update their app before you can call them.
Error when your chat partner's app is incompatible in terms of Telegram calls. Can't be reproduced in official clients.
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App yake **%1$s** inatumia itifaki isiyotangamana. Anahitaji kusasisha app yake kabla uweze kumpigia.
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Deleted Account,
May 17, 2020 at 19:48