You can test and browse the jtel REST API using Swagger.
Access
To access the swagger UI, you can use the following URL:
http(s)://jtel-rest-api-server:port/rest/v1.0/docs/
Usage
Using the swagger UI is much like postman.
Authorisation
First of all, click here to enter your token (retrieved from the Client Master Data):
The token is entered as the string Bearer followed by a space and the actual token:
Test
Now hit "try it out", fill the paramters for the relevant function, and press "Execute" to test: