Index: channels/chan_iax2.c
===================================================================
--- channels/chan_iax2.c	(revision 124181)
+++ channels/chan_iax2.c	(working copy)
@@ -997,12 +997,16 @@
 
 	ast_mutex_lock(&iaxsl[callno]);
 
-	while (iaxs[callno] && iaxs[callno]->pingid != -1) {
+	if (iaxs[callno]) {
 		if (iaxs[callno]->peercallno) {
 			send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_PING, 0, NULL, 0, -1);
+			iaxs[callno]->pingid = iax2_sched_add(sched, ping_time * 1000, send_ping, data);
+		} else {
+			/* I am the schedule, so I'm allowed to do this */
+			iaxs[callno]->pingid = -1;
 		}
-		iaxs[callno]->pingid = iax2_sched_add(sched, ping_time * 1000, send_ping, data);
-		break;
+	} else if (option_debug > 0) {
+		ast_log(LOG_DEBUG, "I was supposed to send a PING with callno %d, but no such call exists (and I cannot remove pingid, either).\n", callno);
 	}
 
 	ast_mutex_unlock(&iaxsl[callno]);
@@ -1010,14 +1014,6 @@
 
 static int send_ping(const void *data)
 {
-	int callno = (long) data;
-
-	ast_mutex_lock(&iaxsl[callno]);
-	if (iaxs[callno]) {
-		iaxs[callno]->pingid = -1;
-	}
-	ast_mutex_unlock(&iaxsl[callno]);
-
 #ifdef SCHED_MULTITHREADED
 	if (schedule_action(__send_ping, data))
 #endif		
@@ -1046,12 +1042,16 @@
 
 	ast_mutex_lock(&iaxsl[callno]);
 
-	while (iaxs[callno] && iaxs[callno]->lagid > -1) {
+	if (iaxs[callno]) {
 		if (iaxs[callno]->peercallno) {
 			send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_LAGRQ, 0, NULL, 0, -1);
+			iaxs[callno]->lagid = iax2_sched_add(sched, lagrq_time * 1000, send_lagrq, data);
+		} else {
+			/* I am the schedule, so I'm allowed to do this */
+			iaxs[callno]->lagid = -1;
 		}
-		iaxs[callno]->lagid = iax2_sched_add(sched, lagrq_time * 1000, send_lagrq, data);
-		break;
+	} else if (option_debug > 0) {
+		ast_log(LOG_DEBUG, "I was supposed to send a LAGRQ with callno %d, but no such call exists (and I cannot remove lagid, either).\n", callno);
 	}
 
 	ast_mutex_unlock(&iaxsl[callno]);
@@ -1059,14 +1059,6 @@
 
 static int send_lagrq(const void *data)
 {
-	int callno = (long) data;
-
-	ast_mutex_lock(&iaxsl[callno]);
-	if (iaxs[callno]) {
-		iaxs[callno]->lagid = -1;
-	}
-	ast_mutex_unlock(&iaxsl[callno]);
-
 #ifdef SCHED_MULTITHREADED
 	if (schedule_action(__send_lagrq, data))
 #endif		
@@ -1313,6 +1305,8 @@
 		}
 	}
 	if (!owner) {
+		AST_SCHED_DEL(sched, iaxs[callno]->lagid);
+		AST_SCHED_DEL(sched, iaxs[callno]->pingid);
 		iaxs[callno] = NULL;
 	}