<![CDATA[<b>]]>**%1$s<![CDATA[</b>]]>**'s app is using an incompatible protocol. They need to update their app before you can call them.
Error when your chat partner's app is incompatible in terms of Telegram calls. Can't be reproduced in official clients.
105
**%1$s** 的应用使用了不兼容的协议。在您能够呼叫他们之前，他们必须先更新他们的应用。
46/105
Nice Giraffe,
Nov 10, 2018 at 15:09