I have multiple ip addresses at my kamailio. I use uac module for
registration to sip providers. I have one provider but want to register
form different ip addresses used by my server. When register sends it takes
ip address form reg_contact_addr(). But if I want to register from another
interface with different ip i need to get to this parametr another ip
address. So As I understand it imposibleto do with avp. Does kamailio have
some methods to do this?