Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 8607)
+++ channels/chan_sip.c	(working copy)
@@ -10669,6 +10669,7 @@
 		if (debug)
 			ast_verbose("Using latest SUBSCRIBE request as basis request\n");
 		/* This call is no longer outgoing if it ever was */
+		sip_cancel_destroy(p);
 		ast_clear_flag(p, SIP_OUTGOING);
 		copy_request(&p->initreq, req);
 		check_via(p, req);