Merge branch 'nsg-4.3' of ssh://git.sangoma.com/smg_freeswitch into nsg-4.3

diff --cc libs/freetdm/mod_freetdm/tdm.c
index ed0d00a1c3532d0eda28a5f0132f9397c3599d51,f344f5a096c2dc4ba1ec1b6776e4fdb68ececb10..a97465c90f3abc2e02df7225a028631b7d8367c8
--- 1/libs/freetdm/mod_freetdm/tdm.c
--- 2/libs/freetdm/mod_freetdm/tdm.c
+++ b/libs/freetdm/mod_freetdm/tdm.c
@@@ -667,15 -664,10 +667,15 @@@ static switch_status_t channel_receive_
                } else if (!strcasecmp(command, kECHOCANCEL)) {
                        const char *szval = switch_event_get_header(event, kECHOCANCEL);
                        int enabled = !!switch_true(szval);
 +              
 +                      switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "FreeTDM sending echo cancel [%s] command \n",enabled ? "enable" : "disable");
                        
                        if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, enabled ? FTDM_COMMAND_ENABLE_ECHOCANCEL : FTDM_COMMAND_DISABLE_ECHOCANCEL, NULL)) {
-                 switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to %s echo cancellation.\n", enabled ? "enable" : "disable");
+                 switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Failed to %s echo cancellation.\n", enabled ? "enable" : "disable");
                        }
 +
 +              } else {
 +                      switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "FreeTDM received unknown command [%s] \n",command);
                }
      }