Hi everyone,
I'm experiencing some issues with Kamailio and RTP Engine.
Here's the setup:
A user initiates a call, and the traffic goes through a router.
The router forwards the traffic to a machine at 192.168.1.75, which runs
Kamailio and RTP Engine.
Kamailio uses a dispatcher to forward calls to 192.168.1.190, a Kubernetes node
running an Asterisk container.
The problem:
When I'm inside the network, everything works fine — I can send and receive
audio.
But when I'm outside the network, the call connects, but there's no audio in
either direction (no send or receive).
Some Configs:
Kamailio.conf:
modparam("rtpengine", "rtpengine_sock", "udp:0.0.0.0:2223")
listen=udp:192.168.1.75:5060
listen=tcp:192.168.1.75:5060
listen=udp:127.0.0.1:5060
# ----- dispatcher params -----
modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.list")
modparam("dispatcher", "flags", 2)
modparam("dispatcher", "xavp_dst", "_dsdst_")
modparam("dispatcher", "xavp_ctx", "_dsctx_")
modparam("dispatcher", "ds_ping_from", "sip:pr...@kamailio.org")
modparam("dispatcher", "ds_ping_interval", 60)
modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_timer_mode", 1)
rtpengine.conf:
interface = 192.168.1.75
listen-udp = 0.0.0.0:2223
port-min = 10000
port-max = 20000
Firewall:
To Action From
-- ------ ----
22 ALLOW Anywhere
12222/udp ALLOW Anywhere
5060/udp ALLOW Anywhere
10000:20000/udp ALLOW Anywhere
22 (v6) ALLOW Anywhere (v6)
12222/udp (v6) ALLOW Anywhere (v6)
5060/udp (v6) ALLOW Anywhere (v6)
10000:20000/udp (v6) ALLOW Anywhere (v6)
Also router has all this ports open
Thank you.
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