I do not have the skills to add such a feature into FreeSwitch and cannot answer your question.

On Sat, Jan 29, 2022 at 10:49 PM H Yavari <hyavari@rocketmail.com> wrote:

Hi Sergey,

Thanks. You think we can add this feature or it is complicated based on the current architecture of FS.

BR

On Saturday, January 29, 2022, 07:15:59 AM PST, Sergey Safarov <s.safarov@gmail.com> wrote:

RFC-4579 is not fully implemented in FreeSwitch.
Feature you a looking is not present in FreeSwitch.