diff --git a/chan_capi.c b/chan_capi.c
index b502582..e271a9b 100644
--- a/chan_capi.c
+++ b/chan_capi.c
@@ -1969,11 +1969,28 @@ static struct ast_frame *pbx_capi_read(struct ast_channel *c)
 
 	f = capi_read_pipeframe(i);
 
-	if ((f) && (f->frametype == AST_FRAME_VOICE) && (f->datalen > 0)) {
-		if ((i->doDTMF > 0) && (i->vad != NULL) ) {
-			f = ast_dsp_process(c, i->vad, f);
+	if (f != NULL) {
+		if (f->frametype == AST_FRAME_VOICE) {
+			if ((f->datalen > 0) && (i->doDTMF > 0) && (i->vad != NULL)) {
+				f = ast_dsp_process(c, i->vad, f);
+			}
+#if 0
+		} else if (f->frametype == AST_FRAME_DTMF) {
+/* Work around problem with recognition of fast sequences of events,
+ * see main/channel.c for details
+ */
+			if (!(ast_test_flag(c, AST_FLAG_END_DTMF_ONLY) ||
+						ast_test_flag(c, AST_FLAG_EMULATE_DTMF) ||
+						ast_test_flag(c, AST_FLAG_IN_DTMF))) {
+				ast_set_flag(c, AST_FLAG_IN_DTMF);
+				c->dtmf_tv = ast_tv(0,0);
+				if (!f->len)
+						f->len = 100;
+			}
+#endif
 		}
 	}
+
 	return f;
 }