Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 58893)
+++ channels/chan_sip.c	(working copy)
@@ -18058,6 +18058,10 @@
 	sip_no_debug, "Disable SIP debugging",
 	no_debug_usage },
 
+	{{ "sip", "set", "debug", "on", NULL },
+	sip_do_debug, "Enable Sip debugging",
+	debug_usage },
+
 	{ { "sip", "history", NULL },
 	sip_do_history, "Enable SIP history",
 	history_usage },