S2 Neon is a softphone application to make VoIP calls from mobile phone.
S2 dialer can run smoothly in any version of android phone
Works In Lowbandwidth,Low Data Consumption,
Codec Support: Supports G729, G711, GSM and AMR codecs
IP Traversal: Runs behind NAT and on private IP
Protocol: Session Initiation Protocol
Compatibility with All softswitches
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