Коллеги, доброе время суток.

Стояла сто лет станция (R7.1-f5.401.36.d), и тут вдруг понадобилось отслеживать входящие звонки.
В трассировке всё ок, номер звонящего приходит корректный:

____________________________________________________________­__________________
| (186751:000007) Physical-Event :
| long: 53  desti: 0  source: 0  cryst: 0  cpl: 24  us: 0  term: 0  type a5
| tei: 0  >>>>  message received : SETUP [05]    Call ref :  00 6f
|                               SENDING COMPLETE
|____________________________________________________________­__________________
|
| IE:[04] BEARER_CAPABILITY (l=3) 80 90 a3
| IE:[18] CHANNEL (l=3)  a1 83 83 -> T2 : B channel 3 preferred
| IE:[6c] CALLING_NUMBER (l=12)  ->  21  83  Num : 911xxxxxxx
| IE:[70] CALLED_NUMBER (l=8)  ->  c1  Num : 450xxxx
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186751:000008) 1168: Send_IO1 (link-nbr=24, sapi=0, tei=0) :
| long: 23  desti: 0  source: 15  cryst: 0  cpl: 24  us: 8  term: 0  type a5
| tei: 0  <<<<  message sent : CALL PROC (02)  Call ref :  80 6f
|____________________________________________________________­__________________
|
| IE:[18] CHANNEL (l=3)  a9 83 83 -> T2 : B channel 3 exclusive
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186751:000009) 1168: Send_IO1 (link-nbr=24, sapi=0, tei=0) :
| long: 22  desti: 0  source: 15  cryst: 0  cpl: 24  us: 8  term: 0  type a5
| tei: 0  <<<<  message sent : ALERT (01)  Call ref :  80 6f
|____________________________________________________________­__________________
|
| IE:[1e] PROGRESS_ID (l=2) 81 88
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186817:000010) 1168: Send_IO1 (link-nbr=24, sapi=0, tei=0) :
| long: 39  desti: 0  source: 15  cryst: 0  cpl: 24  us: 8  term: 0  type a5
| tei: 0  <<<<  message sent : CONNECT (07)  Call ref :  80 6f
|____________________________________________________________­__________________
|
| IE:[4c] CONNECTED_NUMBER (l=19)  ->  01  81  Num : 812450xxxx
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186818:000011) Physical-Event :
| long: 18  desti: 0  source: 0  cryst: 0  cpl: 24  us: 0  term: 0  type a5
| tei: 0  >>>>  message received : CONNECT ACK (0f)  Call ref :  00 6f
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186898:000012) Physical-Event :
| long: 22  desti: 0  source: 0  cryst: 0  cpl: 24  us: 0  term: 0  type a5
| tei: 0  >>>>  message received : DISCONNECT [45]  Call ref :  00 6f
|____________________________________________________________­__________________
|
| IE:[08] CAUSE (l=2) 8a 90 -> [90] NORMAL CALL CLEARING
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186898:000013) 1168: Send_IO1 (link-nbr=24, sapi=0, tei=0) :
| long: 22  desti: 0  source: 15  cryst: 0  cpl: 24  us: 8  term: 0  type a5
| tei: 0  <<<<  message sent : RELEASE [4d]   Call ref :  80 6f
|____________________________________________________________­__________________
|
| IE:[08] CAUSE (l=2) 81 90 -> [90] NORMAL CALL CLEARING
|____________________________________________________________­__________________

____________________________________________________________­__________________
| (186899:000014) Physical-Event :
| long: 18  desti: 0  source: 0  cryst: 0  cpl: 24  us: 0  term: 0  type a5
| tei: 0  >>>>  message received : REL COMP [5a]  Call ref :  00 6f
|____________________________________________________________­__________________


В тикете же номер звонящего без первой цифры:

----[/DHS3dyn/account/TAXAVTER.DAT : Ticket number 7/7/8]-----------------------
(00) TicketVersion = ED5.1              (01) CalledNumber = 11xxxxxxx
(02) ChargedNumber = 7870               (03) ChargedUserName = 7870
(04) ChargedCostCenter =                (05) ChargedCompany =
(06) ChargedPartyNode = 1               (07) Subaddress =
(08) CallingNumber =                    
(09) CallType = PublicNetworkIncomingCall
(10) CostType = ISDNCircuitSwitchedCall (11) EndDateTime = 20170524 14:12:03
(12) ChargeUnits = 0                    (13) CostInfo = 0
(14) Duration = 8                       (15) TrunkIdentity = 2
(16) TrunkGroupIdentity = 1             (17) TrunkNode = 1
(18) PersonalOrBusiness = Normal        (19) AccessCode =
(20) SpecificChargeInfo =               (21) BearerCapability = Speech
(22) HighLevelComp = Unspecified        (23) DataVolume = 0
(24) UserToUserVolume = 0              
(25) ExternFacilities = ConnectedLineIdentificationPresentation
(26) InternFacilities = BasicCall       (27) CallReference = 0
(28) SegmentsRate1 = 0                  (29) SegmentsRate2 = 0
(30) SegmentsRate3 = 0                  (31) ComType = Voice
(32) X25IncomingFlowRate = Unspecified  (33) X25OutgoingFlowRate = Unspecified
(34) Carrier = 0                        (35) InitialDialledNumber = 7870
(36) WaitingDuration = 7                (37) EffectiveCallDuration = 8
(38) RedirectedCallIndicator = 0        (39) StartDateTime = 20170524 14:11:55
(40) ActingExtensionNumber =            (41) CalledNumberNode = 9999
(42) CallingNumberNode = 9999           (43) InitialDialledNumberNode = 9999
(44) ActingExtensionNumberNode = 9999   (45) TransitTrunkGroupIdentity = 32767
(46) NodeTimeOffset = 0                


В чём может быть проблема?