All calls in Retreaver involve an inbound leg and and outbound leg. Inbound is from the Call Source (Publisher) number to Retreaver and outbound is to the Call Endpoint (Buyer) number.
Retreaver allows you to send calls to most international numbers.
North American numbers, UK toll-free numbers, and SIP addresses capabilities are included in Retreaver's basic pricing. Rates are viewable in your account here.
Other international long distance call costs will vary by destination. Contact us for more information on these costs.