[c-nsp] vwic-2mft-g703 and pa-mc-8te1+ issue

[Shefer Yuri]

Hi!

I have problem with connecting our branch router 3845 with
VWIC-2MFT-G703 to our core router 7206 with PA-MC-8TE1+. Software is:
c7200-is-mz.124-12a.bin and c3845-advipservicesk9-mz.124-10.bin. 
Both sides have trivial config:

controller e1 1/1
channel-group 0 timeslots 1-31

and

serial 1/1:0
encapsulation ppp
ip address 1.1.1.1[2] 255.255.255.252

We didn't have any problems with physical link, because our old
equipment works fine.
All diffs on interfaces I have find is that:

Controllers E1 us UP on both sides without alarms.

On 3845:

Serial0/0/0:0 is up, line protocol is down 
  Hardware is GT96K Serial
  Internet address is 1.1.1.2/30
  MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP Closed, multilink Closed, loopback not set
  Keepalive set (10 sec)
  Last input never, output 12:54:21, output hang never
  Last clearing of "show interface" counters 13:53:48
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
...
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     8 input errors, 4 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
  Timeslot(s) Used:1-31, SCC: 0, Transmitter delay is 0 flags

And on 7206 side:

Serial1/1:0 is up, line protocol is down 
  Hardware is PA-MC-8TE1 Plus
  Description: << PPP to XXX >>
  Internet address is 1.1.1.1/30
  MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, 
     reliability 255/255, txload 4/255, rxload 7/255
  Encapsulation PPP, LCP Open, multilink Closed
  Open: IPCP, crc 16, loopback not set

On PA-MC-8TE1 we have crc16 on serial interfaces and cannot disable it
(only switch to crc32). On 3845 we didn't have that.
Type on encapsulation doesn't matter: we always have line proto - down.
May be someone know solution?

Thanks.
-- 
WBR, Yuri