Why is registration in Kamailio by default?

Question

VoIP

Installed kamailio, default config, no rules. I try to register - registration passes. What the heck?..

# Handle SIP registrations
route[REGISTRAR] {
  if (!is_method("REGISTER")) return;

  if(isflagset(FLT_NATS)) {
    setbflag(FLB_NATB);
#!ifdef WITH_NATSIPPING
    # do SIP NAT pinging
    setbflag(FLB_NATSIPPING);
#!endif
  }
  if (!save("location")) {
    sl_reply_error();
  }
  exit;
}

Answer 1

To check authorization, I recommend using the
authentificate+challenge bundle.
Example:
route[AUTH] {
...
if (!pv_www_authenticate("$td","$var(HA1)","1")) {
xlog("L_INFO","5:$fU");
www_challenge("$td","1");
exit;
}
...
}
In my example, I have authorization by ha1 line.
Google the uac module on the off site of the cam. Everything is clear there.