Deepgram

Deepgram is a U.S.-based ASR/TTS provider. Its products are specifically optimized for phone call scenarios, offering more accurate speech recognition and extremely fast response times.

First, register an account at: www.deepgram.com. By default, the account includes $200 in free credits.
After the account is created successfully, create an API key in Deepgram, copy it and save it to a text file.

In addition, Deepgram also provides service endpoints in Europe, making it a good choice for users serving the European market.
The European service endpoint is: 

wss://api.eu.deepgram.com/v1/listen

In the EasyCallCenter365 admin portal, go to menu: 
Basic Configuration -> Speech To Text-> Amazon Aws.

Here, you need to modify two parameters: API Key and Server URL.
For users in the United States, you only need to modify the API Key.

You can log in to the Deepgram dashboard to test and compare the performance 
of different speech recognition models https://playground.deepgram.com/ .