Hi @DougS, I don’t think is possible to access a real echo by service, at least not this momment ,
If there is a way to get the echo keys and secret words maybe can be accesed, but i dont know how to get that.
the best shot i think is to have an old android device with media renderer device near to the echo, ST send your command to the android device and send the talk command to echo, and echo respond. I think you can mode your echo to install an audio input to hide the android device.
or use the android connected to echo by bluethooth, but in this way echo works like a speaker and not answerd commands
you can send audio from ST to bluetooth speaker if you have a windows computer that works like bridge.