route{
if (!mf_process_maxfwd_header(10)) {
sl_send_reply(483,"Too Many Hops");
exit;
}
if (has_totag()) {
# sequential requests within a dialog should
# take the path determined by record-routing
if (loose_route()) {
if (is_method("BYE")) {
# do accunting, even if the transaction fails
do_accounting("log","failed");
} else if (is_method("INVITE")) {
# even if in most of the cases is useless, do
RR for
# re-INVITEs alos, as some buggy clients do
change route set
# during the dialog.
record_route();
}
# route it out to whatever destination was set by
loose_route()
# in $du (destination URI).
route(relay);
} else {
if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but stateful ACK;
must be an ACK after
# a 487 or e.g. 404 from upstream server
t_relay();
exit;
} else {
# ACK without matching transaction ->
# ignore and discard
exit;
}
}
sl_send_reply(404,"Not here");
}
exit;
}
# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}
t_check_trans();
if (is_method("REGISTER")) {
mid_registrar_save("location");
switch ($retcode) {
case 1:
xlog("forwarding REGISTER to main registrar
($$ci=$ci)\n");
fix_nated_contact();
add_path_received();
$ru = "sip:bp214.erss.in:443;transport=wss;";
t_relay();
break;
case 2:
xlog("absorbing REGISTER! ($$ci=$ci)\n");
break;
default:
xlog("failed to save registration! ($$ci=$ci)\n");
}
exit;
}
# preloaded route checking
if (loose_route()) {
xlog("L_ERR",
"Attempt to route with preloaded Route's [$fu/$tu/$ru/$ci]");
if (!is_method("ACK"))
sl_send_reply(403,"Preload Route denied");
exit;
}
# record routing
if (!is_method("REGISTER|MESSAGE"))
record_route();
# account only INVITEs
if (is_method("INVITE")) {
#sethostport("10.214.0.18:443");
do_accounting("log");
}
if (!is_myself("$ru")) {
append_hf("P-hint: outbound\r\n");
route(relay);
}
# requests for my domain
if (is_method("PUBLISH|SUBSCRIBE"))
{
sl_send_reply(503, "Service Unavailable");
exit;
}
if ($rU==NULL) {
# request with no Username in RURI
sl_send_reply(484,"Address Incomplete");
exit;
}
# initial requests from main registrar, need to look them up!
if (is_method("INVITE|MESSAGE") && $si == "10.214.0.18" && $sp == 443) {
xlog("looking up $ru!\n");
if (!mid_registrar_lookup("location")) {
t_reply(404, "Not Found");
exit;
}
t_relay();
exit;
}
# when routing via usrloc, log the missed calls also
do_accounting("log","missed");
route(relay);
}
when I make a call from user A to user B, it throws "480: Temporarily
Unavailable". Both User A and User B are registered.
Sent from Outlook for Android<https://aka.ms/AAb9ysg>
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