diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index a07501598a..3a37087d9d 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -2415,7 +2415,7 @@ static int my_check_waitingfordt(void *pvt)
 {
 	struct dahdi_pvt *p = pvt;
 
-	if (p->waitingfordt.tv_usec) {
+	if (p->waitingfordt.tv_sec) {
 		return 1;
 	}
 
@@ -9418,7 +9418,7 @@ static struct ast_frame *dahdi_read(struct ast_channel *ast)
 #if 0
 	ast_debug(1, "Read %d of voice on %s\n", p->subs[idx].f.datalen, ast->name);
 #endif
-	if (p->dialing ||  p->radio || /* Transmitting something */
+	if ((p->dialing && !p->waitingfordt.tv_sec) ||  p->radio || /* Transmitting something */
 		(idx && (ast_channel_state(ast) != AST_STATE_UP)) || /* Three-way or callwait that isn't up */
 		((idx == SUB_CALLWAIT) && !p->subs[SUB_CALLWAIT].inthreeway) /* Inactive and non-confed call-wait */
 		) {