; ; addresses, but the first will be the
; ; default
;
-; Set iaxcompat to yes if you plan to use layered
-; switches. It incurs a small performance hit to enable it
+; Set iaxcompat to yes if you plan to use layered switches or
+; some other scenario which may cause some delay when doing a
+; lookup in the dialplan. It incurs a small performance hit to
+; enable it. This option causes Asterisk to spawn a separate thread
+; when it receives an IAX DPREQ (Dialplan Request) instead of
+; blocking while it waits for a response.
;
;iaxcompat=yes
;