diff -u -r orig/asterisk-1.4.21.2/channels/chan_zap.c asterisk-1.4.21.2/channels/chan_zap.c
--- orig/asterisk-1.4.21.2/channels/chan_zap.c	2008-09-19 11:47:47.000000000 -0300
+++ asterisk-1.4.21.2/channels/chan_zap.c	2008-09-19 11:38:19.000000000 -0300
@@ -4924,7 +4925,10 @@
 				} else if (f->frametype == AST_FRAME_VOICE) {
 					f->frametype = AST_FRAME_NULL;
 					f->subclass = 0;
-					if (ast_dsp_get_tstate(p->dsp) == DSP_TONE_STATE_DIALTONE && ast_dsp_get_tcount(p->dsp) > 9) {
+					if ((ast_dsp_get_tstate(p->dsp) == DSP_TONE_STATE_DIALTONE && ast_dsp_get_tcount(p->dsp) > 9) ||
+					    (ast_dsp_get_tstate(p->dsp) == DSP_TONE_STATE_RINGING && ast_dsp_get_tcount(p->dsp) > 9)) {
 						p->waitingfordt.tv_sec = 0;
 						p->dsp_features &= ~DSP_FEATURE_WAITDIALTONE;
 						ast_dsp_set_features(p->dsp, p->dsp_features);
@@ -10106,6 +10111,7 @@
 			ast_cli(fd, "Fax Handled: %s\n", tmp->faxhandled ? "yes" : "no");
 			ast_cli(fd, "Pulse phone: %s\n", tmp->pulsedial ? "yes" : "no");
 			ast_cli(fd, "Echo Cancellation: %d taps%s, currently %s\n", tmp->echocancel, tmp->echocanbridged ? "" : " unless TDM bridged", tmp->echocanon ? "ON" : "OFF");
+			ast_cli(fd, "Wait for dialtone: %dms\n", tmp->waitfordialtone);
 			if (tmp->master)
 				ast_cli(fd, "Master Channel: %d\n", tmp->master->channel);
 			for (x = 0; x < MAX_SLAVES; x++) {