Toll-free numbers are phone numbers that can be dialed from landlines and mobiles with no charge to the person placing the call. These numbers allow callers to reach businesses without being charged a fee for the call.
The majority of use cases for toll-free numbers are customer service calling related. In most cases, toll-free numbers are assigned to a call center where agents handle incoming calls. Agent rarely make outbound calls using toll-free numbers, it's also not supported in some countries.
Outbound calls from toll-free numbers can be filtered, blocked or not properly routed to its destination by terminating carriers (your contacts/customers).
But yes, it's still possible to make outbound calls from toll free numbers. This feature is not enabled by default. Please contact your Account Manager or our Customer Support to enabled it for you.