“Select which IP to use in ‘Contact’ and ‘Connection’ fields” option not working as expected

[R-yen]

I'm having trouble getting a secondary SIP trunk to work. I've narrowed it down to the Contact URI in the SIP/SDP header containing the external IP, despite having configured the option “Select which IP to use in ‘Contact’ and ‘Connection’ fields” with the local IP of the network interface.
The local IP is used in the SDP section as Owner Address.

Configuring the local ip as "Contact: Host Part" in the Outbound Parameters is ignored. (Probably overwritten by the “Select which IP to use in ‘Contact’ and ‘Connection’ fields” option.)

Any tips about how to get this working?

Version Number: 15.5.0

 

[leejor]

Which provider is this? Others may have experience using them, and any "special" settings required. It helps to know who it is.

 

[R-yen]

This is Vodafone One Fixed in NL.

The only problem is when the remote caller ends the call, the disconnect request is send to the wrong IP, so the PBX keeps the line active. Everything else is working.

 

[leejor]

Which template did you use when setting up the trunk?

 

[R-yen]

I tried the vodafone one fixed template for NL and a generic template. Same result.

 

[R-yen]

After a reboot of the PBX, the settings are working as expected now..