Monocle is a gateway service that enables seamless integration of your private IP based network RTSP/RTP cameras (inside your own network or over the Internet using NAT) with smart home automation services such as Amazon Alexa.

Simply sign-up and register at MonocleCam.com and add each of your cameras and their connection details to your profile and Monocle will integrate your cameras with Amazon Alexa allowing you to view them on any Alexa supported video device such as an Echo Show, Echo Spot and/or Amazon Fire TV. Please note, at this time Alexa video supported devices only support RTSP/RTP streams with H.264 encoded video.

A complete set of step-by-step instructions are provided via this link:
https://monoclecam.com/start.html

NOTE: Monocle is not a cloud service that directly hosts or provides access to your camera's audio/video feeds but rather an aggregation and integration service. To access your network camera's audio/video feeds your Amazon Echo video-enabled device must be able to directly access the camera's video/audio stream over the network. This means that the Alexa device must be on the same private network where your cameras reside or you must expose your cameras over the Internet either by placing the camera on a public Internet connection or placing it behind a router and exposing the camera's RTSP port through the router using NAT (network address translation) By far the most common approach is to simply have all your camera's and Alexa devices on the same private network.