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
TELEflash is a registred Carrier in Germany with his own Portingcode, own Hardware and with dedicated Peeringconnections to other german Carriers. We also offer MVNO-Services with german SIM-Cards.