Hi,
Ideally you should provide a network capture (pcap) from the OpenSIPS
server, covering both incoming and outgoing traffic - this is the only
way to understand what is wrong with the call.
As attachments are limited to 40K here, consider using some pastebin or
other file sharing service.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
https://www.siphub.com
On 11/13/23 1:26 PM, Sreeram Narayanan via Users wrote:
Hello,
I am trying to use OpenSIPs with the load_balancer module to balance
inbound calls between 2 Asterisk servers. The setup sits behind a NAT.
The OpenSIPs server has a public IP and a private IP. When an INVITE
arrives, it can forward it to one of the Asterisk servers and Asterisk
responds with a 200 OK. The problem starts when I receive the ACK
(from Twilio). The ACK starts bouncing between the public IP and
Private IP of the OpenSIPs server. It doesn't reach the
Asterisk server and eventually times out. I hope someone can help me
with this. Thanks in advance.
Here is my configuration:
####### Routing Logic ########
route {
if (is_method("INVITE")) {
rtpproxy_engage();
}
if ($rm=="INVITE") {
lb_start_or_next(1,"pstn");
}
t_check_trans();
record_route();
t_on_failure("GW_FAILOVER");
# route the request
if (!t_relay()) {
sl_reply_error();
}
exit;
}
route[RELAY] {
if (!t_relay()) {
sl_reply_error();
}
exit;
}
failure_route[GW_FAILOVER] {
if (t_was_cancelled()) {
exit;
}
# failure detection with redirect to next available trunk
if (t_check_status("(408)|([56][0-9][0-9])")) {
xlog("Failed trunk $rd/$du detected \n");
}
}
--
- Sreeram
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