Concerning practical implementation, the VoIP gateways have proven to be the best. Many companies are successfully using the IP telephony thanks to its two main characteristics
Decrease in international and long distance call cost expenditures
Stable communications between company’s offices throughout different cities and counties
Dean Connect Delivers High quality SIP termination, number porting, Dutch area codes, SIP trunks, T38 FAX support and hosted PBX in retail and white-label model.