Hello Henning,
Thanks for your quick response. Kamailio is complaining about a too long SIP message so migrating to TCP makes sense (I hadn't thought about it).
I have enabled TCP in kamailio.cfg: disable_tcp=no
I am using the dispatchers module to identify the gateway endpoints and I have updated it accordingly:
1 sip:10.0.1.69:5080;transport=tcp
and in my invite resolver I am forcing the sending socket to be tcp as well.
route[INVITE_RESOLVER] { xlog("L_DBG", "[R-INVITE-RESOLVER:$ci] Entering INVITE resolver\n");
route(CHECK_DID);
# Use main asterisk dispatcher set $var(disp_set) = 1;
# Store diversion reason redis_cmd("abn", "SET $fd-div $dir", "r");
# Trim SIP messages of useless headers remove_hf_re("^X-");
$fs = "tcp:PRIVATE_IP:5080";
xlog("L_INFO", "[R-INVITE-RESOLVER:$ci] Processing dispatcher set $var(disp_set)\n");
if(!ds_select_domain("$var(disp_set)", "4")) { # This should only happen if the route set is empty. sl_send_reply("503", "Out of Gateways"); xlog("L_ERR", "[R-INVITE-RESOLVER:$ci] !> " "No gateways available!\n"); exit; }
xlog("L_INFO", "[R-INVITE-RESOLVER:$ci] -> " "Selected gateway: $rd:$rp\n");
t_on_failure("DISPATCHER_ROLLOVER"); route(INVITE_POSTROUTE); }
Are there any resources that I can check to make sure that I am not missing anything? Since this is not working, I am suspecting it is related with the Asterisk side of things but that should be handled in another mail list.
Thanks for your support,
On Tue, Oct 30, 2018 at 9:29 PM Henning Westerholt hw@kamailio.org wrote:
Am Montag, 29. Oktober 2018, 17:27:27 CET schrieb Joan Salvatella:
[..]
- *Message Too Long Error:* Since Twilio uses long URIs to define its
resources, the SIP messages being handled by Kamailio are sometimes
too
big and generate a "Message Too Long error". I have been able to temporarily patch this removing unused headers using remove_hf_re and remove_hf but it still fails from time to time. Is there a way to split
the
UDP packet to mitigate this issue? or what other options could be considered?
Hello Joan,
I don't understand the error description completely. Does Kamailio complain about a to long header field or a too long SIP message?
About the question regarding the options - have you thought about using TCP?
Best regards, Henning
-- Henning Westerholt - https://skalatan.de/blog/ Kamailio security assessment - https://skalatan.de/de/assessment