Hello Mubarak Alhajri,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
I understand that you would like to know you can build a Microsoft teams bot using the azure real-time API without the use of STT or TTS.
Yes, it is possible to build a Microsoft Teams bot without using Speech-to-Text (STT) or Text-to-Speech (TTS) capabilities. You can create a text-based bot that interacts with users through text messages only. Here are some key points to consider. You can use the Bot Framework SDK - to develop your bot. This SDK supports creating bots that handle text-based interactions, without the need for STT or TTS. - https://learn.microsoft.com/en-us/microsoftteams/platform/bots/build-a-bot
I hope this is helpful! Do not hesitate to let me know if you have any other questions or clarifications.
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful.