diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 2c80242b84..43c6e05d2f 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -915,7 +915,10 @@ static int __schedule_action(void (*func)(void *data), void *data, const char *f
 static void __send_ping(void *data)
 {
 	int callno = (long)data;
-	send_command_locked(callno, AST_FRAME_IAX, IAX_COMMAND_PING, 0, NULL, 0, -1);
+	ast_mutex_lock(&iaxsl[callno]);
+	if (iaxs[callno])
+		send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_PING, 0, NULL, 0, -1);
+	ast_mutex_unlock(&iaxsl[callno]);
 }
 
 static int send_ping(void *data)
@@ -948,7 +951,10 @@ static void __send_lagrq(void *data)
 {
 	int callno = (long)data;
 	/* Ping only if it's real not if it's bridged */
-	send_command_locked(callno, AST_FRAME_IAX, IAX_COMMAND_LAGRQ, 0, NULL, 0, -1);
+	ast_mutex_lock(&iaxsl[callno]);
+	if (iaxs[callno])
+		send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_LAGRQ, 0, NULL, 0, -1);
+	ast_mutex_unlock(&iaxsl[callno]);
 }
 
 static int send_lagrq(void *data)