CallBack is a function that allows a subscriber to make a call to a phone number so that the call is incomingOrder
What is it for?
Using CallBack, you can significantly reduce the cost of outgoing communication in the company. Since outgoing calls are perceived by the billing system as incoming, they become free for the subscriber.
This feature is particularly useful for companies whose employees spend most of their working time traveling.
Activate the function independently according to the installation instructionsSet up