Update app.py

app.py

@@ -8,7 +8,6 @@ from fastapi import FastAPI
 from fastrtc import (
     Stream,
     get_stt_model,
-    get_twilio_turn_credentials,
     ReplyOnPause,
     AdditionalOutputs
 )
@@ -152,6 +151,28 @@ def use_gtts_for_text(text):
         print(f"gTTS error: {e}")
         yield None
 
+# Custom WebRTC configuration that doesn't require Twilio
+rtc_configuration = {
+    "iceServers": [
+        {"urls": ["stun:stun.l.google.com:19302"]},
+        {
+            "urls": ["turn:openrelay.metered.ca:80"],
+            "username": "openrelayproject",
+            "credential": "openrelayproject"
+        },
+        {
+            "urls": ["turn:openrelay.metered.ca:443"],
+            "username": "openrelayproject", 
+            "credential": "openrelayproject"
+        },
+        {
+            "urls": ["turn:openrelay.metered.ca:443?transport=tcp"],
+            "username": "openrelayproject",
+            "credential": "openrelayproject"
+        }
+    ]
+}
+
 # Create Gradio chatbot and stream
 chatbot = gr.Chatbot(type="messages")
 stream = Stream(
@@ -161,7 +182,7 @@ stream = Stream(
     additional_outputs_handler=lambda a, b: b,
     additional_inputs=[chatbot],
     additional_outputs=[chatbot],
-    rtc_configuration=get_twilio_turn_credentials() if get_space() else None,
+    rtc_configuration=rtc_configuration if get_space() else None,
     concurrency_limit=5 if get_space() else None,
     time_limit=90 if get_space() else None,
     ui_args={"title": "LLM Voice Chat (Powered by DeepSeek & ElevenLabs)"}
@@ -182,3 +203,4 @@ if __name__ == "__main__":
         stream.fastphone(host="0.0.0.0", port=7860)
     else:
         stream.ui.launch(server_port=7860)
+