It looks as though it is only available for extensions, not trunks, which seems a strange limitation.
Unless someone points out that I have missed something you will have to add send_rpid=yes and/or send_pai=yes as customisations to the end point.
It looks as though it is only available for extensions, not trunks, which seems a strange limitation.
Unless someone points out that I have missed something you will have to add send_rpid=yes and/or send_pai=yes as customisations to the end point.