It is the business practice of sending all clients' billing info to a separate company, who then does everything for you. It also allows a company to cut down on time and human resources spent on administrative tasks.
Personal SIP/IAX/POTS/SMS Gateway services for A-Z calls. Pre-paid credit. Direct SIP/IAX calls or calls via POTS gateway using analog/mobile lines + pin. Callshop solution and DIDS from all regions in Czech Republic available.