linux-avmb1:b1 with a old alcatel/sel 1tr6 system

[Fatespinner]

hi,

i have the following problem. I want linux with a avm b1 card and isdn in a 
system that uses the old 1tr6 and is about 10 years old.
The linux system i use is redhat enterprise 2.1. I installed capi, c4l, and 
use with capi the b1-1tr6.t4 fw.

I try now for two weeks and have no clue how to get it to work. I get always 
the following error, when i try to dial out with pppd:

Apr 19 14:13:31 asterisk1 pppd[3904]: Plugin userpass.so loaded.
Apr 19 14:13:31 asterisk1 pppd[3904]: userpass: $Revision: 1.3 $
Apr 19 14:13:31 asterisk1 pppd[3904]: Plugin capiplugin.so loaded.
Apr 19 14:13:31 asterisk1 pppd[3904]: capiplugin: $Revision: 1.26 $
Apr 19 14:13:31 asterisk1 pppd[3904]: capiconn:  1.7
Apr 19 14:13:31 asterisk1 kernel: kcapi: appl 2 up
Apr 19 14:13:31 asterisk1 kernel: PPP generic driver version 2.4.2
Apr 19 14:13:31 asterisk1 pppd[3906]: pppd 2.4.1 started by root, uid 0
Apr 19 14:13:31 asterisk1 pppd[3906]: capiplugin: phase serialconn.
Apr 19 14:13:31 asterisk1 pppd[3906]: capiplugin: dialing 03039984330 (hdlc)
Apr 19 14:13:36 asterisk1 pppd[3906]: capiplugin: disconnect(remote): "" -> 
"030
39984330" outgoing (pcli=0x101/ncci=0x0) 0x3301 (0x0000) - Protocol error 
layer
1 (broken line or B-channel removed by signalling protocol)

or with another program:

Apr 18 14:56:31 VERBOSE[1851]:        > sent CONNECT_REQ MN =0x3
Apr 18 14:56:31 VERBOSE[1851]:     -- Called 428783431:001756621114
Apr 18 14:56:31 VERBOSE[1851]:     -- CONNECT_CONF ID=001 #0x0003 LEN=0014
  Controller/PLCI/NCCI            = 0x101
  Info                            = 0x0

Apr 18 14:56:31 VERBOSE[1851]:     -- CONNECT_CONF ID=001 #0x0003 LEN=0014
  Controller/PLCI/NCCI            = 0x101
  Info                            = 0x0

Apr 18 14:56:31 VERBOSE[1851]:   == received CONNECT_CONF PLCI = 0x101 INFO = 
0
Apr 18 14:56:36 VERBOSE[1851]:     -- DISCONNECT_IND ID=001 #0x0001 LEN=0014
  Controller/PLCI/NCCI            = 0x101
  Reason                          = 0x3301

Apr 18 14:56:36 VERBOSE[1851]:   == DISCONNECT_IND PLCI=0x101 REASON=0x3301


The same error appears if i use a fcpci card or the b1.t4 fw.

strangely when i just plug a alcatel sel 1072U phone on the line the phone 
works well. It is also interesting that the phone gets the correct time and 
date when it connects

This is my capi.conf:

b1pci b1-1tr6.t4 1TR6 - - - -

This is my dmesg:
.
.
.
.
divert: allocating divert_blk for eth0
CAPI-driver Rev 1.1.4.1: loaded
b1: revision 1.1.4.1
b1dma: revision 1.1.4.1
b1pci: revision 1.1.4.1
kcapi: driver b1pci attached
b1pciv4: revision 1.1.4.1
kcapi: driver b1pciv4 attached
PCI: Found IRQ 10 for device 00:0b.0
b1pci: PCI BIOS reports AVM-B1 at i/o 0x7000, irq 10
kcapi: Controller 1: b1pci-7000 attached
b1pci: AVM B1 PCI at i/o 0x7000, irq 10, revision 2
b1pci: 1 B1-PCI card(s) detected
divert: freeing divert_blk for eth0
.
.
.
.
capifs: Rev 1.1.4.1
capi20: started up with major 68
kcapi: capi20 attached
capi20: Rev 1.1.4.2: started up with major 68 (middleware+capifs)
b1pci-7000: card 1 "B1" ready.
b1pci-7000: card 1 Protocol:
b1pci-7000: card 1 Linetype: point to multipoint
b1pci-7000: B1-card (3.10-02) now active
kcapi: card 1 "b1pci-7000" ready.
kcapi: notify up contr 1
capi: controller 1 up

I hope that any of you does have a clue what the error or problem might be.

thanks