I now have Alexa voice control of my Airsight XX51a.
well at least telling it to go to pre-sets 1-8
I also have the option to voice control my Airsight XX70a to do the same.
The code(included in Alex10 v1.5.3.1+) also will allow control of my Foscam or Easyn Fseries cams.
However currently code only allows configuration for one camera.
I most likely will add multi camera Alexa control to PCC in the future.
I've read about the Echo team working on the Voice ID, and apparently having a cold won't affect it's ability to recognize.
This actually has been in the works for some time. Google has also been working on this and is apparently on the new Samsung smartphones