[OpenSIPS-Users] Beginner Needs Clarification: Destination URI always NULL?

[Alan Frisch]

I've been using the scripts generated by the Sipwise Wizard to learn the LCR
module and OpenSIPS in general.  Just sending requests from OpenSIPS to two
Asterisk test servers I set up.

While I get the general concept of URI's, I am trying to discern exactly
what a Destination URI is within the OpenSIPS world.  This debug line has me
a little confused:

...
xlog("L_INFO", "Request leaving server, D-URI='$du' - M=$rm RURI=$ru F=$fu
T=$tu IP=$si ID=$ci\n");
...

This is fired just before the !t_relay to the selected gateway.  However, in
the console "D-URI" always is NULL.  If somone could be so kind, please help
me understand the difference between a R-URI and D-URI and why D-URI is
always NULL in my case.

Thanks!
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