Hi Mark,

The per-msg FROM changing will break the SIP , as the FROM hdr is dialog persistent (as value). But you have a point here, that probing OPTIONS is not creating any SIP dialog, so you should be good with that.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
OpenSIPS eBootcamp 2021
  https://opensips.org/training/OpenSIPS_eBootcamp_2021/

On 11/25/21 6:40 PM, Mark Farmer wrote:
Thanks Bogdan.

I did work around it in local_route by removing and re-adding the From: header based on a specific destination.

Mark.

On Thu, 25 Nov 2021 at 15:31, Bogdan-Andrei Iancu <[email protected] <mailto:[email protected]>> wrote:

    Hi Mark,

    I'm afraid there is no way to do that.

    Regards,

    Bogdan-Andrei Iancu

    OpenSIPS Founder and Developer
       https://www.opensips-solutions.com  <https://www.opensips-solutions.com>
    OpenSIPS eBootcamp 2021
       https://opensips.org/training/OpenSIPS_eBootcamp_2021/  
<https://opensips.org/training/OpenSIPS_eBootcamp_2021/>

    On 11/25/21 2:52 PM, Mark Farmer wrote:
    Hi everyone

    I have 2 interfaces (udp:internal & a natted tls:external as
    xxx.xxx.xxx.xxx) and using drouting() to send sip OPTIONS to
    endpoints via both.

    I have been using the 'probing_from' parameter but I would like
    to change the from URI depending on which interface the OPTIONS
    request will be sent from.

    Is this possible? I am using 3.2

    Many thanks
    Mark.


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Mark Farmer
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