Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 101225)
+++ channels/chan_sip.c	(arbetskopia)
@@ -3548,7 +3548,7 @@
 					append_history(p, "DELAY", "Not sending cancel, waiting for timeout");
 				} else {
 					/* Send a new request: CANCEL */
-					transmit_request(p, SIP_CANCEL, p->ocseq, XMIT_RELIABLE, FALSE);
+					transmit_request(p, SIP_CANCEL, p->pendinginvite, XMIT_RELIABLE, FALSE);
 					/* Actually don't destroy us yet, wait for the 487 on our original 
 					   INVITE, but do set an autodestruct just in case we never get it. */
 					needdestroy = 0;