configure Kamailio with ipv6

We want someone to configure a Kamailio server on AWS(amazon services) to work with IPv6 and IPv4 both. we expect the following to work Stage 1 (with outbound proxy enabled ) 1.) IPv6 clients should be able to use the Kamailio server as a proxy and register to IPv6 sip servers 2.) IPv6 clients should be able to use the Kamailio server as a proxy and register to IPv4 sip servers 3.) IPv4 clients should be able to use the Kamailio server as a proxy and register to IPv4 sip servers 4.) IPv4 clients should be able to use the Kamailio server as a proxy and register to IPv6 sip servers 5.) TLS must be used 6.) clients from ipv6 only networks must register to ipv4 sip servers using this as the proxy. stage 2 1.) clients send the call with media encryptions SRTP ZRTP and DTLS, calls must go to sip server with the encryption. 2.) we need both IPv4 and IPv6 clients to use this. ALL the implementations must be done on the servers we provide.