diff --git a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c
index 03b5a5fb1d..e5926243a0 100644
--- a/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c
+++ b/libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c
@@ -134,7 +134,7 @@ ftdm_state_map_t sangoma_isdn_state_map = {
 		ZSD_INBOUND,
 		ZSM_UNACCEPTABLE,
 		{FTDM_CHANNEL_STATE_PROGRESS, FTDM_END},
-		{FTDM_CHANNEL_STATE_TERMINATING, FTDM_CHANNEL_STATE_HANGUP, FTDM_CHANNEL_STATE_PROGRESS_MEDIA, FTDM_END},
+		{FTDM_CHANNEL_STATE_TERMINATING, FTDM_CHANNEL_STATE_HANGUP, FTDM_CHANNEL_STATE_PROGRESS_MEDIA, FTDM_CHANNEL_STATE_UP, FTDM_END},
 	},
 	{
 		ZSD_INBOUND,