Hi irfanullah3,
Based on my experience, Voice messages are an exclusive feature of the Teams mobile app, instead of typing you can simply record a voice message by pushing a button as shown in the following picture. And voice messages can be heard by users using the desktop and the mobile app and they are included in the chat.
To use this feature, do the following:
- Push and hold the microphone icon at the bottom of the screen
- Release the button when you finish the message
- Tap the send button
Feel free to let me know if you have any queries. Have a nice day.
Thanks,
Linda