Voice Control

[atamariya]

UMS is merely a UPnP server. Alexa skill would be useful with a UPnP contoller e.g BubbleUPNP Player.

[atamariya]

I think one major limitation in case of UMS is the following requirementby Alexa:

The audio file must be hosted at an Internet-accessible HTTPS endpoint on port 443. HTTPS on port 443 is required, and the web server must present a valid and trusted SSL certificate. Self-signed certificates are not allowed. Many content hosting services provide this. For example, you could host your files at a service such as Amazon Simple Storage Service (Amazon S3) (an Amazon Web Services offering).

If only Alexa could accept HTTP url (supported by UMS), developing a skill would be straightforward.