SIP Outbound Parameters not working

[Dennis-MeetingOne]

I am attempting to setup 3CX 15 Debian to work with our SIP provider (not officially supported, but standard SIP connections) and can't seem to get the Outbound Parameters to override the registration. When the registration sends, the to: field looks like the first line but should look like the second line (dummy data).

Wrong - To: <sip:[email protected]:5100>

Right - To: <sip:[email protected]>

I have the To: User Part and To: Host Part set with custom values in Outbound Parameters, but nothing I do changes the actual registration. Is there a known bug that prevents this? Do I need to modify something else?

EDIT:
I believe the issue is that the registration headers aren't updated. Does anyone know a way to modify the registration headers like you can the Invite headers?

 

[YiannisH_3CX]

Hello @Dennis-MeetingOne

Please note that the registration settings are found under the general settings of the trunk and not the outbound parameters of the PBX.
If you want to change the providers IP to a host name then you need to do so under the general settings / Registrar/Server/Gateway Hostname or IP