[SR-Users] send reply from branch route?

Hello

Is there a possibility to send a reply from within a branch route?

Experimental case (yes, I know it's a non working set-up, but I just wonder if that would be possible).

Two registrar nodes, location information shared between the two.

CPE registers via TLS, therefore the existing connection shall be used towards the CPE and that only exists on one of the registrars.

So in the Branch Route I would like to do something like:

$var(socket) = $(ulc(aor=>socket)[$T_branch_idx]);

if ($var(socket) == 0) { send_reply("503","no local socket"); }

This would cause the core routing instance to select the next registrar from the dispatcher list which hopefully holds the active socket.

But none of the 'send_reply' variants seem to be allowed within a branch route.

Or is there a better solution?

Mit freundlichen Grüssen

-Benoît Panizzon-