S2 neon app for android description: s2 neon is a softphone application to make voip calls from mobile phone.
S2 dialer can run smoothly in any version of android phoneworks in lowbandwidth low data consumption codec support: supports g729 g711 gsm and amr codecsip traversal: runs behind nat and on private ipprotocol: session initiation protocolcompatibility with all softswitches