add-on hanging if dtmf input is entered before message has finished playing

[newpond]

I am still having problems with the add-on hanging randomly when you press a key entry before the message has completed. unfortunately the "running" status does not change when this happens, however I have noticed that the cpu goes down to 0.3% when it hangs so I have automation to restart it through that. although sadly a restart doesn't necessarily fix it as can hang again on the first call after. changing from piper tts to a mp3 media file seams to make it a bit better but for some reason it still reprocesses the file before it plays it for some reason. im guesing ti could be to do with this file conversion, but if I'm using a static mp3 (although not through choice, it just seem to improve it a bit), can this not just be stored as the converted version? (im guessing it is via the cache) but im using this as an emergency alert system so it shouldn't go off very often by which time the cache will have expired. is there a way to ignore any key presses until after the message has been read?

I was using Vonage and now using Linphone sip if that makes any difference any help appreciated