Callbacks can be initiated via the TENIOS Cloud API. At the beginning it is necessary to activate the CallBacks functionality for your account. You need to contact TENIOS support to activate this service for your account. Afterwards you can add callback functionality to your project (e.g. add a callback form on your website). Example configuration: When executing a callback from the system, a call is to be set up to your side, usually to a call center agent or representative. The destination number to be called has to be defined in the callback configuration. After the call is connected, a second call to the customer is established. As soon as the customer answers the call, both calls are connected so that the agent can talk to the customer.