16 Jan
2020
16 Jan
'20
3:54 p.m.
Hi All,
I'm having some issues trying to properly send a '302 Moved Temporarily'
reply to the calling UAC (UAC1) when the remote UAC (UAC2) returns a 486
status (Do Not Disturb). The goal is to redirect UAC1 to a voicemail server
when UAC2 is in DND.
Here are the pertinent parts of my config:
route {
# drop some things right away
route(DROP);
# perform sanity check
route(SANITYCHECK);
# handle registrations
if(is_method("REGISTER")) {
route(REGISTRATION);
exit;
}
# handle invites
if(is_method("INVITE")) {
route("INVITE");
exit;
}
route(RELAY);
}
route[INVITE] {
# add this proxy to the record-route so it stays in the loop
record_route();
# if we can find this user in the location DB...
if(lookup("location")) {
# relay the invite to the new dURI
t_on_failure("FOURDIGITFAIL");
t_on_reply("FOURDIGITREPLY");
route(RELAY);
# go back to the main route
return;
}
onreply_route[FOURDIGITREPLY] {
if(t_check_status("4[0-9]{2}")) {
t_reply("302", "Moved Temporarily");
}
}
I'm having issues with the t_reply in the onreply_route. It successfully
sends the reply, but I can't seem to set the Contact header properly. I'm
trying to set it to the location of the user's mailbox on the voicemail
sever (ie sip:1000@vmpbx.domain.com), but nothing I try works. I've tried:
remove_hf("Contact");
insert_hf("Contact: sip:1000@vmpbx.domain.com");
t_reply("302", "Moved Temporarily");
But as I understand it, that just changes the header in the reply from
UAC2, not the reply I'm sending to UAC1
Then I tried:
append_to_reply("Contact: sip:1000@vmpbx.domain.com" );
t_reply("302", "Moved Temporarily");
But I can't use append_to_reply in an onreply block.
How can I change the Contact header in the reply that's sent? Am I just
going about this the wrong way? Any help would be appreciated. Thanks