freetdm: fix for enabling DTMF detection on d-channel

diff --git a/libs/freetdm/src/ftdm_io.c b/libs/freetdm/src/ftdm_io.c
index f97029b8dc5f392a46326d711934cee4aeb1b201..430b58a31e08fa61181565b3c83745ea91d122f6 100644 (file)
--- a/libs/freetdm/src/ftdm_io.c
+++ b/libs/freetdm/src/ftdm_io.c
@@ -2923,23 +2923,27 @@ FT_DECLARE(ftdm_status_t) ftdm_channel_command(ftdm_channel_t *ftdmchan, ftdm_co
        case FTDM_COMMAND_ENABLE_DTMF_DETECT:
                {
                        /* if they don't have thier own, use ours */
-                       if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
-                               teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
-                               ftdm_set_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
-                               ftdm_set_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
-                               ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Enabled software DTMF detector\n");
-                               GOTO_STATUS(done, FTDM_SUCCESS);
+                       if (FTDM_IS_VOICE_CHANNEL(ftdmchan)) {
+                               if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
+                                       teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
+                                       ftdm_set_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
+                                       ftdm_set_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
+                                       ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Enabled software DTMF detector\n");
+                                       GOTO_STATUS(done, FTDM_SUCCESS);
+                               }
                        }
                }
                break;
        case FTDM_COMMAND_DISABLE_DTMF_DETECT:
                {
-                       if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
-                               teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
-                               ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
-                               ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
-                               ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Disabled software DTMF detector\n");
-                               GOTO_STATUS(done, FTDM_SUCCESS);
+                       if (FTDM_IS_VOICE_CHANNEL(ftdmchan)) {
+                               if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
+                                                               teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
+                                                               ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
+                                       ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
+                                       ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Disabled software DTMF detector\n");
+                                       GOTO_STATUS(done, FTDM_SUCCESS);
+                               }
                        }
                }
                break;