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
nexVortex is an Internet Telephony Service Provider. We specialize in delivering high quality Voice over IP communication services to small and medium sized businesses using SIP Trunking.