Uno chiama e vedo l'altro che mi da questi errori in debug. Perché??

*Mar 12 00:16:05.487: ISDN BR0 EVENT: service_queue_from_physical_layer: Recvd L
1 prim 1 state is 3
*Mar 12 00:16:05.491: ISDN BR0 EVENT: isdn_sw_cstate: State = 4, Old State = 4
*Mar 12 00:16:05.611: ISDN BR0 EVENT: process_rxstate: ces/callid 1/0xCC calltyp
e 1 HOST_INCOMING_CALL
*Mar 12 00:16:05.623: ISDN BR0 **ERROR**: host_incoming_call: DIALER ERROR 0x1:
b channel 0, call id 0xCC
*Mar 12 00:16:05.627: ISDN BR0 EVENT: process_rxstate: ces/callid 1/0xCC calltyp
e 1 HOST_DISCONNECT_ACK
*Mar 12 00:16:07.567: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 88 change
d to up
*Mar 12 00:16:07.575: ISDN BR0 **ERROR**: L3_Go: Multi nlcb DL_EST, cid 0xCC cr
0xB2 ev 0x300 ces 1
*Mar 12 00:16:14.735: ISDN BR0 EVENT: process_rxstate: ces/callid 1/0xCD calltyp
e 1 HOST_INCOMING_CALL
*Mar 12 00:16:14.743: ISDN BR0 **ERROR**: host_incoming_call: DIALER ERROR 0x1:
b channel 0, call id 0xCD
*Mar 12 00:16:14.751: ISDN BR0 EVENT: process_rxstate: ces/callid 1/0xCD calltyp
e 1 HOST_DISCONNECT_ACK