+void
+empathy_tp_call_start_tone (EmpathyTpCall *call, TpDTMFEvent event)
+{
+ EmpathyTpCallPriv *priv = GET_PRIV (call);
+
+ g_return_if_fail (EMPATHY_IS_TP_CALL (call));
+ g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_ACCEPTED);
+
+ if (!priv->audio->exists)
+ return;
+
+ tp_cli_channel_interface_dtmf_call_start_tone (priv->channel, -1,
+ priv->audio->id, event,
+ (tp_cli_channel_interface_dtmf_callback_for_start_tone) tp_call_async_cb,
+ "starting tone", NULL, G_OBJECT (call));
+}
+
+void
+empathy_tp_call_stop_tone (EmpathyTpCall *call)
+{
+ EmpathyTpCallPriv *priv = GET_PRIV (call);
+
+ g_return_if_fail (EMPATHY_IS_TP_CALL (call));
+ g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_ACCEPTED);
+
+ if (!priv->audio->exists)
+ return;
+
+ tp_cli_channel_interface_dtmf_call_stop_tone (priv->channel, -1,
+ priv->audio->id,
+ (tp_cli_channel_interface_dtmf_callback_for_stop_tone) tp_call_async_cb,
+ "stoping tone", NULL, G_OBJECT (call));
+}
+
+gboolean
+empathy_tp_call_has_dtmf (EmpathyTpCall *call)
+{
+ EmpathyTpCallPriv *priv = GET_PRIV (call);
+
+ g_return_val_if_fail (EMPATHY_IS_TP_CALL (call), FALSE);
+
+ return tp_proxy_has_interface_by_id (priv->channel,
+ TP_IFACE_QUARK_CHANNEL_INTERFACE_DTMF);
+}
+