Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 124966)
+++ channels/chan_sip.c	(working copy)
@@ -4324,7 +4324,7 @@
 	/* Destroy Session-Timers if allocated */
 	if (p->stimer) {
 		if (p->stimer->st_active == TRUE && p->stimer->st_schedid > -1)
-			ast_sched_del(sched, p->stimer->st_schedid);
+			AST_SCHED_DEL(sched, p->stimer->st_schedid);
 		ast_free(p->stimer);
 	}
 
@@ -14989,7 +14989,7 @@
 	case 423:	/* Interval too brief */
 		r->expiry = atoi(get_header(req, "Min-Expires"));
 		ast_log(LOG_WARNING, "Got 423 Interval too brief for service %s@%s, minimum is %d seconds\n", p->registry->username, p->registry->hostname, r->expiry);
-		ast_sched_del(sched, r->timeout);
+		AST_SCHED_DEL(sched, r->timeout);
 		r->timeout = -1;
 		if (r->call) {
 			r->call = NULL;
@@ -18594,7 +18594,7 @@
 
 	if (p->stimer->st_active == TRUE) {
 		p->stimer->st_active = FALSE;
-		ast_sched_del(sched, p->stimer->st_schedid);
+		AST_SCHED_DEL(sched, p->stimer->st_schedid);
 		ast_debug(2, "Session timer stopped: %d - %s\n", p->stimer->st_schedid, p->callid);
 	}
 }