I used the "SIP Proxy/Registrar with Offnet-Termination and
Accounting" configuration from the Sipwise Wizard. Rather than
gumming up the list with what it spits out there, here is the relevant
bits when issuing a call to one of my gateways:
########################################################################
# Request route 'invite-to-external'
########################################################################
route[6]
{
if(isflagset(20))
{
xlog("L_INFO", "Call to foreign domain - M=$rm RURI=$ru F=$fu
T=$tu
IP=$si ID=$ci\n");
route(2);
exit;
}
if(!isflagset(23))
{
# don't allow calls relaying from PSTN to PSTN, if not
explicitely forwarded
if(uri =~ "^sip:[0-9]+@")
{
# only route numeric users to PSTN
if(!load_gws())
{
xlog("L_ERR", "Error loading PSTN gateways -
M=$rm RURI=$ru F=$fu
T=$tu IP=$si ID=$ci\n");
sl_send_reply("503", "PSTN Termination
Currently Unavailable");
exit;
}
if(!next_gw())
{
xlog("L_ERR", "No PSTN gateways available -
M=$rm RURI=$ru F=$fu
T=$tu IP=$si ID=$ci\n");
sl_send_reply("503", "PSTN Termination
Currently Unavailable");
exit;
}
setflag(21);
t_on_failure("1");
route(2);
}
}
xlog("L_INFO", "Call to unknown user - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
sl_send_reply("404", "User Not Found");
exit;
}
########################################################################
# Request route 'base-outbound'
########################################################################
route[2]
{
t_on_reply("1");
if(!isflagset(21))
{
t_on_failure("2");
}
if(is_present_hf("Proxy-Authorization"))
{
xlog("L_INFO", "Attempting to consume
credentials.\n$hdr(Proxy-Authorization)\n)");
remove_hf("Proxy-Authorization");
}
xlog("L_INFO", "Request leaving server, D-URI='$du' - M=$rm
RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
# no 100 (we already sent it) and no DNS blacklisting
if(!t_relay("0x05"))
{
sl_reply_error();
}
exit;
}
########################################################################
For the life of me, I can't find much of a definition of D-URI in
Google. Even the OpenSER book I have does not even touch on it other
than saying $du = Destination URI.
Thanks.
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