esta es la parte donde estaria el error supongo
T|12/07/2019 15:37:05.140|API |0000990001562956615698265475| EV_CALL_FAIL[487]: Orig: [D 99 C 0], Dest: [D60429 C 29], event on ORIGIN
T|12/07/2019 15:37:05.146|API |D60429 C 29| Disconnecting with Q.850 127
T|12/07/2019 15:37:05.146|API |D60429 C 29| Not switched, ignoring clear
T|12/07/2019 15:37:05.146|API |D60429 C 29| Channel state changed SEIZED -> CLOSING
T|12/07/2019 15:37:05.160|API |D60429 C 29| CM_DISCONNECT( isdn_cause='27' ) ignored, CanSendCommand rejected with InvalidState, _State=CLOSING