I am trying to implement Amazon Connect CTI adapter for Salesforce with a custom CCP UI. I have followed this guide to successfully implement this. https://amazon-connect.github.io/amazon-connect-salesforce-cti/docs/lightning/installation/01-installation
I also need to get the real time transcription working with this CTI adapter. I followed this guide which creates a custom CCP panel with real time transcription built in. https://aws.amazon.com/blogs/contact-center/provide-call-sentiment-analytics-to-agents-using-real-time-contact-analysis-segment-streams-in-amazon-connect-contact-lens/
But I am not able to bring both together. When I change the salesforce SSO's destination url to the custom CCP URL, it shows up in the popup window(SSO authentication popup) but after that the traditional CCP panel shows up in the Salesforce softphone.
As I mentioned in my comment the question is not very clear, but I will give it a go anyway. I had a quick look at the blog post you mentioned and I noticed that they didn't include a step to whitelist the custom CCP at Amazon Connect. Make sure the URL of the deployed app is whitelisted as described in here.