#define switch_channel_up(_channel) (switch_channel_check_signal(_channel, SWITCH_TRUE) || switch_channel_get_state(_channel) < CS_HANGUP)
#define switch_channel_down(_channel) (switch_channel_check_signal(_channel, SWITCH_TRUE) || switch_channel_get_state(_channel) >= CS_HANGUP)
-#define switch_channel_up_nosig(_channel) switch_channel_get_state(_channel) < CS_HANGUP
-#define switch_channel_down_nosig(_channel) switch_channel_get_state(_channel) >= CS_HANGUP
+#define switch_channel_up_nosig(_channel) (switch_channel_get_state(_channel) < CS_HANGUP)
+#define switch_channel_down_nosig(_channel) (switch_channel_get_state(_channel) >= CS_HANGUP)
#define switch_channel_media_ack(_channel) (!switch_channel_test_cap(_channel, CC_MEDIA_ACK) || switch_channel_test_flag(_channel, CF_MEDIA_ACK))