Use Twilio

app.py

@@ -1,6 +1,20 @@
 from fastrtc import Stream
 import numpy as np
 
+from twilio.rest import Client
+import os
+
+account_sid = os.environ.get("TWILIO_ACCOUNT_SID")
+auth_token = os.environ.get("TWILIO_AUTH_TOKEN")
+
+client = Client(account_sid, auth_token)
+
+token = client.tokens.create()
+
+rtc_configuration = {
+    "iceServers": token.ice_servers,
+    "iceTransportPolicy": "relay",
+}
 
 def flip_vertically(image):
     return np.flip(image, axis=0)
@@ -8,6 +22,7 @@ def flip_vertically(image):
 
 stream = Stream(
     handler=flip_vertically,
+    rtc_configuration=rtc_configuration,
     modality="video",
     mode="send-receive",
 )