Mass Dialer

Mass Dialer is offering VoIP Calls from data enabled mobile phones (2G/3G/4G or WiFi) to any landline or mobile devices around the world.
Features:
*VoIP Calls via Wi-Fi, 2G / 3G and more .
*Works in all Countries and all Networks across firewalls.
*Smooth voice quality
*Echo cancellation for clarity of voice are 100%.
*Uses very less bandwidth and low network area with maximum voice quality.
*Mass Dialer is more feasible and elegant to work with.
*Mass Dialer Supports all major Codecs and standard SIP RFC.
*Mass Dialer proivdes Real time SIP status.
*Mass Dialer Supports Nat Travesal.
*Mass Dialer is integrated with Address book, call history and CDR.