Try to set $rd or $dd instead of rewritehostport().

On Mon, 17 Dec 2018 at 10:04 AM, Boden Garman bpgarman@fastmail.fm wrote:

Hi Aqs, Thanks for the reply. Without the append_branch() the headers are set but the rewritehostport() doesn't work and the request is re-sent to the PSTN gateway.

On Mon, 17 Dec 2018, at 3:51 PM, Aqs Younas wrote:

Remove append_branch().

On Mon, 17 Dec 2018 at 6:08 AM, Boden Garman bpgarman@fastmail.fm wrote:

Hi list,

I'm trying to play an announcement for my users when my PSTN gateway responds with a 404 Not Found (Reason: Q.850;cause=3), indicating a wrong number. I'm a bit lost and would appreciate any advice.

What I am seeing is two parallel SIP invites, one to my announcement server (hooray!) and one to the PSTN gateway again (which I don't want). How do I stop the original branch from starting again?

I've tried changing the order of rewritehostport and append_branch without any difference. I've also tried to use t_relay() instead of the RELAY route.

I'm using Kamailio 5.1 and have modified the deafult kamailio.cfg

Thanks! Boden

I think this is the relevant parts of the config:

# PSTN GW routing route[PSTN] { [PSTN regex logic omitted]

    # classify as an outbound call
    set_dlg_profile("outbound_calls");

    # select a PSTN gateway from the dispatcher
    if (!ds_select_dst("66", "8")) {
            send_reply("404", "No destination");
            exit;
    }

    # failover if the selected PSTN gateway is down
    t_on_failure("RTF_DISPATCH");

    route(RELAY);
    exit;

}

# Try next destinations in failure route failure_route[RTF_DISPATCH] { xlog("inside RTF_DISPATCH"); if (t_is_canceled()) { exit; }

    # wrong number from PSTN
    if (t_check_status("404")) {
            append_branch();
            append_hf("X-Application: announcement\r\n");
            append_hf("X-Announcement-Playback: wrong-number\r\n");
            route(TO_ANNOUNCEMENT);
            exit;
    }

    # next DST - only for 500 or local timeout
    if (t_check_status("500") or (t_branch_timeout() and

!t_branch_replied())) { xlog("selecting next destination"); if (ds_next_dst()) { t_on_failure("RTF_DISPATCH"); route(RELAY); exit; } } }

# Routing to announcement server route[TO_ANNOUNCEMENT] { if (!is_method("INVITE")) { return; } rewritehostport('ANNOUNCEMENT_SERVER:5060'); route(RELAY); exit; } _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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