"Do voice agents support text input from users during active calls?" "How can I enable text input in the Web Client SDK?" "Is there a method to send text messages from the user to the agent during a voice call?"

No, this isn’t supported. Voice agents don’t accept text input from users during an active phone call. Text input via the Web Client SDK only works for web calls, not PSTN/voice calls. There’s also no way to send user text to the agent mid-call. If you need voice + text interaction, the call has to be handled as a web call, not a phone call. Happy to help you design a workaround if needed.

Thanks for your help. If you need voice + text interaction, the call has to be handled as a web call, not a phone call. could you explain more about it? I am developing web site chatting interface, not just use phone call. In the chat interface, I need to interact with agent with voice + text.