Сбрасывает междугородный звонок по PRI, help! Опции

[oleger]

LDK 300, 3.6Ca
Во втором кабинене два PRIB, звоно на один из них. Длинный гудок, потом отбой. У абонента один короткий сигнал вызова. Появилось недавно, ничего не трогал, ТФОП утверждает, что тоже ничего не делал.
И шо делать мне?

Trace: Звонок с мобильного на 62500 ( внутренний номер 100 )

11238372 COL 017:18 01 St:co idle (00) EVT 5 2A 05 A1 04 03 90 90 A3 18 03 A
1 83 81 1E 02 81 81 70 06 A1 36 32 35 30 30 96 28 0F 42 65 6C 5F 54
65 6C 5F 49 6E 5F 4D 65 7A 68 (U0)
<<<<<<<<<<============================================--------------------

(CO 17) SETUP
IE_SEND_COMPLETE
IE_BEARER_CAPABILITY
CCITT standardized coding
3.1kHz audio
circuit mode
64kbits
recommandation G.711 A-law
IE_CHANNEL_INFO
interface implicitly identified
other inferface
indicated channel preferred
is not D-channel
B1 channel
CCITT standard coding
indicated by num in following octet
B channel units
81
IE_PROG_INDICATION
CCITT standard coding
private net serving local user
call is not end-to-end ISDN
IE_CALLED_NO
national number
ISDN numbering plan
62500
Analysis Control Msg Failed: 96 MSG Und
eclared

--------------------============================================>>>>>>>>>>

(CO 17) CALL PROCEEDING
IE_CHANNEL_INFO
interface implicitly identified
other inferface
exclusive
is not D-channel
B1 channel
CCITT standard coding
indicated by num in following octet
B channel units
81

11238372 COL 017:18 01 St:co idle (00) Ev-I:ring start P1: 0 P2: 0 EVT: 11
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:disa dgt P1: 6 P2: 0 EVT: 80
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:disa dgt P1: 2 P2: 0 EVT: 80
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:disa dgt P1: 5 P2: 0 EVT: 80
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:disa dgt P1: A P2: 0 EVT: 80
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:disa dgt P1: A P2: C EVT: 80
<- 17,61
11238372 COL 017:18 01 St:di-dialing(00) Ev-I:dummy acd P1:26F3 P2: 0 EVT: 0
<- 17,61
11238377 COL 017:18 01 St:di-dialing(00) Ev-T:ds-dial P1: 0 P2: 0 TMR: 40
<- 17,61
11238377 COL 017:18 01 St:dd-rng req(00) Ev-I:dummy acd P1:26AF P2: 1 EVT: 0
<- 17,61
11238377 COL 017:18 01 St:dd-rng req(00) Ev-I:dummy acd P1:26F3 P2: 0 EVT: 0
<- 17,61
11238377 COL 017:18 01 St:dd-rng req(00) Ev-I:dd rng ack P1: 0 P2: 0 EVT: 82
<- 1,01
--------------------============================================>>>>>>>>>>

(CO 17) ALERTING
IE_CHANNEL_INFO
interface implicitly identified
other inferface
exclusive
is not D-channel
B1 channel
CCITT standard coding
indicated by num in following octet
B channel units
81

11238402 COL 017:18 01 St:dd-wt ans (00) EVT E 05 45 08 02 81 FF (U7)
<<<<<<<<<<============================================--------------------

(CO 17) DISCONNECT
IE_CAUSE
CCITT standardized coding
private network serving local user
interworking, unspecified

--------------------============================================>>>>>>>>>>

(CO 17) RELEASE
IE_CAUSE
CCITT standardized coding
private network serving local user
interworking, unspecified

11238406 COL 017:18 01 St:dd-wt ans (00) EVT :E0 01 5A (U19)
<<<<<<<<<<============================================--------------------

(CO 17) RELEASE COMPLETE

11238409 COL 017:18 01 St:dd-wt ans (00) Ev-T:isd rls gd P1: 0 P2: 0 TMR: 9
<- 17,61