You can temporarily block alerts for messages and calls on one or more of your supported Echo devices using the Do Not Disturb feature.
CIRP estimates that 10.7 million homes have one of the Echo family of products in their home, providing Amazon with a Trojan horse that has gone largely unrecognized. If you have the U11 already unlocked, saying Alexa will open the app just as you'd expect, or you can launch the HTC Alexa app manually from the app tray.
The HTC U11 is made out of metal and glass, while it is fueled by the Snapdragon 835 64-bit octa-core processor. A new report suggests that shopping by voice - "Alexa, order a new pair of my favourite jeans" - is about to become a retail trend. More Skills across a wider variety of tasks makes a system like Alexa more appealing than rival voice assistants. Just like an Echo device, volume and playback control is performed with your voice commands through the HTC Alexa app.
The good news is that you don't live in that world. There is no word yet on what will be possible or not possible in this incarnation of Amazon's smart virtual assistant, but we can pretty much presume the sky's the limit. Not that the HTC Companion is even worth mentioning at this point. It has all of the skills that are loaded into my account, and it can even play music through Amazon Music without the Amazon Music app loaded onto my phone. If you're thinking Google Assistant, it's already there but this time, HTC made a decision to add Alexa instead. With Alexa, you cannot access services such as Spotify or Pandora, like you can do on the Echo.
Otherwise, in the apps current state as of the date of this post, its hard to recommend a current Amazon Echo owner to enable this feature given that Google Assistant performs most if not all the same voice commands with a more polished and consistent experience.
If you prefer to launch Alexa manually, you can now choose to launch it with a squeeze or squeeze and hold using the Edge Sense technology on the HTC U11. However, this particular support was previously in available in Huawei Ascend Mate 9 smartphone, and it perfectly works on that.