Praveen M.

we work on open source android/iphone/web/windows/mac/blackberry/symbian SIP apps those work with Sip server like asterisk.we also work on asterisk AMI (Asterisk management interface),AGI (Asterisk gateway interface). we customise SIP based VOIP app as per customer requirement. We have also made our own one VOIP tunnel solution .It is encrypted/compressed UDP over TCP tunnel.tunnel's both end are bidirectional(read /send data). Our solution do encryption of UDP data over TCP/IP and it also has compression .Compression result better voice also. It is a client server architecture and we would sell solution without code. we have server for environment like windows and UNIX,MAC.