Some CICs is in PENDING state

Hello all, I had an server with sangoma card (wanpipe driver installed) + dahdi 3.1.0 + libss7_2.0.0 + asterisk16, we a integrating with an opcos where phisical link has been connected in MGW and then MSC, the brand is Ericsson, E1 has been configured on both sides, linkset is UP and MTP3 alsi is UP, but we have a problem, some CICS is IDLE some is PENDING state, here is the output from asterisk and MSC:
Asterisk:
CIC DPC DAHDI STATE BLOCKING
2 701 2 Idle
3 701 3 Idle
4 701 4 Pending
5 701 5 Idle
6 701 6 Idle
7 701 7 Pending
8 701 8 Idle
9 701 9 Idle
10 701 10 Pending
11 701 11 Pending
12 701 12 Idle
13 701 13 Pending
14 701 14 Pending
15 701 15 Idle
16 701 16 Pending
17 701 17 Pending
18 701 18 Idle
19 701 19 Idle
20 701 20 Pending
21 701 21 Idle
22 701 22 Idle
23 701 23 Pending
24 701 24 Idle
25 701 25 Idle
26 701 26 Pending
27 701 27 Pending
28 701 28 Idle
29 701 29 Pending
30 701 30 Pending
31 701 31 Idle

Ericson MSC:
<strdp:r=UIVRO;
DEVICE STATE SURVEY
R NDV NOCC NIDL NBLO RSTAT
UIVRO 30 0 16 14 NORES
DEVICE STATE DETAILS
DEV STATE BLS FTYPE ADM ABS LST LIST
UPDR-15586 IDLE H’0 -
UPDR-15587 IDLE H’0 -
UPDR-15588 SEAL H’20 RESET
UPDR-15589 IDLE H’0 -
UPDR-15590 IDLE H’0 -
UPDR-15591 SEAL H’20 RESET
UPDR-15592 IDLE H’0 -
UPDR-15593 IDLE H’0 -
UPDR-15594 SEAL H’20 RESET
UPDR-15595 SEAL H’20 RESET
UPDR-15596 IDLE H’0 -
UPDR-15597 SEAL H’20 RESET
UPDR-15598 SEAL H’20 RESET
UPDR-15599 IDLE H’0 -
UPDR-15600 SEAL H’20 RESET
UPDR-15601 SEAL H’20 RESET
UPDR-15602 IDLE H’0 -
UPDR-15603 IDLE H’0 -
UPDR-15604 SEAL H’20 RESET
UPDR-15605 IDLE H’0 -
UPDR-15606 IDLE H’0 -
UPDR-15607 SEAL H’20 RESET
UPDR-15608 IDLE H’0 -
UPDR-15609 IDLE H’0 -
UPDR-15610 SEAL H’20 RESET
UPDR-15611 SEAL H’20 RESET
UPDR-15612 IDLE H’0 -
UPDR-15613 SEAL H’20 RESET
UPDR-15614 SEAL H’20 RESET
UPDR-15615 IDLE H’0 -
END
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The CICs that is in PENDING state MSC send to us RSC then we answer with RLC, but MSC didn’t receive our RLC, then MSC send again and again to us RSC.
Maybe someone had the problem like this and know what can be the problem.
OPCOS said that the problem is on remote side (my), we said that the problem is on OPCOS side.

Has been made an test with enginner from Ericsson about CIC matching and the result of test in OK, I received BLK on all CICs one by one from 2 to 31. Also on MGW has been locked TDMGroup for first span of E1, on my side CIC changed state to R:M and on MCS side all CIC changed state to ABL, this is mean that between MGW and MSC is not any problem.

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