Kamailio isn’t working on my Azure VM, even though it’s set up to use port 5060. The network rules on Azure have both inbound and outbound traffic open for all protocols. I also tried using advertised_address, but that didn’t help either. It looks like no traffic is even hitting Kamailio — none of the routing blocks are triggered.


Kamailio.cfg
alias=<PUBLIC-IP>
listen=udp:10.0.0.4:5060 advertise <PUBLIC-IP>:5060
listen=tcp:10.0.0.4:5060 advertise <PUBLIC-IP>:5060

Sip Message:
2025/06/04 15:50:37.870679 64.16.250.10:5060 -> 10.0.0.4:5060
INVITE sip:+351200600020@<PUBLIC-IP>:5060 SIP/2.0
Record-Route: <sip:64.16.250.10;r2=on;lr;ftag=DpHvv09240egQ>
Record-Route: <sip:10.255.0.2;r2=on;lr;ftag=DpHvv09240egQ>
Via: SIP/2.0/UDP 64.16.250.10;branch=z9hG4bKd59a.fb67bf395ea20488a7a5ebf76b9b5685.0
v:SIP/2.0/UDP 10.239.196.24:6000;received=10.239.196.24;rport=6000;branch=z9hG4bKy9ZvBZcgretvr
Max-Forwards:48
f:"+351908020050"<sip:+351908020050@sip.telnyx.com>;tag=DpHvv09240egQ
t:<sip:+351200600020@<PUBLIC-IP>:5060>
i:122d71bb-4f3d-473f-8853-9137023f1f14
CSeq:99972326 INVITE
m:<sip:mod_sofia@10.239.196.24:6000>
Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,MESSAGE,INFO,UPDATE,REFER,NOTIFY
k:timer,path
u:talk,hold,conference,refer
Privacy:none
c:application/sdp
Content-Disposition:session
l:202
P-Asserted-Identity:"+351908020050"<sip:+351908020050@sip.telnyx.eu;verstat=No-TN-Validation>

v=0
o=Telnyx 1749019739 1749019740 IN IP4 50.114.147.4
s=Telnyx
c=IN IP4 50.114.147.4
t=0 0
m=audio 32498 RTP/AVP 9
a=rtpmap:9 G722/8000
a=sendrecv
a=rtcp:32499 IN IP4 50.114.147.4
a=ptime:20
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