Testbox config used default config with enabled roles ``` #!KAMAILIO #!define WITH_DEBUG #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_USRLOCDB #!define WITH_PRESENCE #!define WITH_PSTN ``` Kamailio behind NAT and bounded to NIC using ``` listen=udp:eth0:5060 advertise 199.180.30.245:15060 ``` SIP device creates call to PSTN number +18009998877

Please look at wireshark PCAP file packet `11` You can find `Record-Route` with private address, advertise keyword not take effect ``` Record-Route: sip:172.17.0.2;lr ``` Kamailio debug loo attachet too [kamailio-log.txt](https://github.com/kamailio/kamailio/files/1212335/kamailio-log.txt)

[sip.zip](https://github.com/kamailio/kamailio/files/1212338/sip.zip)

When used NIC for bound ``` [root@6d5120ba12c3 /]# kamcmd core.sockets_list { socket: { proto: udp address: 172.17.0.2 port: 5060 mcast: no mhomed: no } } ``` When user IP address for bound ``` { socket: { proto: udp address: 172.17.0.2 port: 5060 mcast: no mhomed: no } } ```

When used IP address for bound, then `advertise` keyword works correctly.

`advertised_address` is only for Via headers.

There seem to be two similar rpc commands to list the sockets, the one that gives more details is `corex.list_sockets`, the one from core is likely from the `ser`.

Anyhow, I will look into the code, likely a new listen structure is created in the case interface name is provided and advertise value is lost.

Can you try with latest master branch or the patch referenced above?

Closed #1209.