channel callback

app/app.py

@@ -317,6 +317,10 @@ async def amiPJSIPShowAuths():
     abort(401)
   return successReply(app.cache['devices'])
 
+@app.route('/blackhole')
+async def blackhole():
+  return ''
+
 @app.route('/ami/aors')
 @authRequired
 async def amiPJSIPShowAors():