There are three different environments available for service invocation.

Comparison of Available Environments
	Production	Sandbox	Mock
Functional scope	All services are available in the full functional scope	Some services are not available or are limited (e.g., call duration, number of characters for an SMS or available quota)	The interfaces to the services are available but without functionality.
Costs	Billing with each use	Free-of-charge use
Quota	User and system quota		Not applicable