All prices are in US dollars.
Purchases can be cancelled for a full refund at any time within 60 days of purchase. After 60 days a partial refund for each full month of unused service will be provided on request.
From Kieran O'Loughlin, a longtime SIPSorcery user.
SIPSorcery has allowed me to maintain 5 different incoming phone numbers from 3 different countries and to direct all those incoming calls to a single home phone.
It has also allowed me to choose which outgoing SIP provider to use, based on call destination, pricing etc.