Index: channels/chan_dahdi.c
===================================================================
--- channels/chan_dahdi.c	(revision 194206)
+++ channels/chan_dahdi.c	(working copy)
@@ -4710,6 +4710,7 @@
 			/* absorb event */
 		} else {
 #endif
+			dahdi_confmute(p, 0);
 			p->subs[idx].f.frametype = AST_FRAME_DTMF_END;
 			p->subs[idx].f.subclass = res & 0xff;
 #ifdef HAVE_PRI