An advanced VoIP tunneling software that helps VoIP service providers offer their services in geographical areas where VoIP calls are blocked by firewalls or bandwidth is low. Offered to iTel Mobile Dialer customers, iTel Byte Saver reduces bandwidth consumption up to 70% at the originating end. Using efficient tunneling technology, it passes calls to the VoIP service provider's Softswitch through any internet firewall or blockage by establishing a tunnel between itself and iTel Mobile Dialer. Furthermore, iTel Byte Saver ensures much less voice delay because of distributed media IPs.